Omega Speedmaster Chronograph Servicing

Omega Speedmaster Chronograph Servicing close up, green background

From our fully equipped watch workshop In Lewes we offer a full range of repairs – from smaller jobs like battery changes and glass replacements through to full watch servicing of a wide range of brands including Omega, Tag Heuer, Longines, Breitling and Rolex. 

Disassembly and Servicing of the Omega Speedmaster Movement

For this job, we are working on an Omega Speedmaster, similar to the Omega Speedmaster Triple Calendar Chronograph that we serviced a while back. We often see Speedmasters in the workshop – a testament to the enduring popularity of these watches. This model is an automatic chronograph with date. The three sub-dials indicate seconds, plus chronograph minutes and hours. The centre second hand is for the chronograph seconds.

“The Omega Speedmaster is a testament to enduring craftsmanship and reliability, with many owners trusting its chronograph functionality year after year. Despite wear over time, the movement remains a classic in the world of automatic chronographs.”

 

It arrived in well-worn condition and had not been to a watchmaker in many years, so this means worn-out parts are highly likely, especially those involved in the automatic winding mechanism. Despite the lack of previous maintenance, our British Horological Institute-qualified watchmaker brings extensive experience in repairing vintage watches.

First, we disassemble the movement. This Omega Speedmaster uses an Omega calibre 1164, which is an Omega customised version of the ETA calibre 7750. These are good, solid chronograph movements and the 7750, in different variations, has been used in quality automatic chronograph watches for many decades.

As anticipated, wear is found in the automatic mechanism – both the rotor bearing and the reversing wheel need replacing. Most oils and greases are dried up, though everything else appears in good order besides the mainspring which we replace as standard.

Once fully disassembled the movement is cleaned – first going through a manual cleaning process before a cycle in our Elma Solvex RM automatic cleaning machine. When parts are completely clean and dried, we can commence reassembly. We follow the manufacturer’s technical guidelines for the correct usage and placement of oil and grease, as well as the use of other treatments such as epilame

As part of the service we fit the replacement parts – a new mainspring, reversing wheel and rotor bearing. We always endeavour to fit a new mainspring as part of a service, though it’s especially important when dealing with a watch like this. The mainspring is housed inside a barrel which is buried in the very depths of the movement underneath all of the chronograph mechanism, so replacing it is not straightforward without the watch being fully stripped down.

“Replacing the mainspring is not a simple task—its position deep within the movement, under all the chronograph mechanisms, requires careful disassembly. This meticulous attention to detail is essential to ensuring the Speedmaster continues to perform at its best.”

 

Alongside the movement servicing we give the case and bracelet a light polish, clean and fit replacement seals as appropriate before conducting a pressure test to confirm water resistance. We can now reunite all elements of the watch. With the movement refitted and everything checked on the timing machine, we can close the case back before a final pressure test. 

Final Testing and Reassembly: Restoring the Omega Speedmaster to Perfection

With the works completed we now test the watch using an Elma Cyclomotion watch winding machine, as well as testing in static positions and for the correct functioning of all features including the chronograph and quick change of the date. After the testing period is complete this superb Omega Speedmaster Chronograph can be reunited with our client. If you’re interested in the turnaround time for watch servicing, have a look at our article  “How Long Does A Full Watch Service Take” to learn more about the factors that can affect the timeline and how we ensure a thorough, efficient process for every watch we service.

Summary

At W.E. Watch Repairs in Lewes, we provide comprehensive watch servicing, from basic repairs to full movement overhauls. In this case, we serviced an Omega Speedmaster, addressing wear in the automatic winding mechanism and replacing critical components like the rotor bearing and mainspring. The movement was carefully cleaned, reassembled, and tested to ensure optimal performance. Our team follows precise technical guidelines to restore watches to their original functionality.


Looking to Have Your Omega Speedmaster Serviced?

At W.E. Watch Repairs, we specialise in servicing both modern and vintage timepieces. Whether your Omega Speedmaster needs a full service, precision tuning, or expert repairs, our skilled watchmakers are here to help.

Take advantage of our Royal Mail Special Delivery FREEPOST service—your watch is fully insured for up to £20,000 throughout its journey, ensuring peace of mind from the moment it leaves your hands until it is safely returned.

Book your vintage watch for a service today and trust us to restore it to peak performance!

Omega Speedmaster Moon Watch Chronograph Servicing

Omega Speedmaster watch on a green background banner

Our fully equipped on-site watch workshop offers a full range of repairs – from smaller jobs like battery changes and glass replacements to full watch servicing of the vast majority of brands, including Omega, Tag Heuer, Longines, Breitling, and Rolex.

The Iconic Omega Speedmaster – The Moon Watch

For this job, we are working on an Omega Speedmaster, an Omega model we are experience in watch servicing. This is an iconic vintage watch model of Speedmaster, often referred to as the Moon Watch. It gained global recognition when it became the first watch worn on the moon during NASA’s Apollo 11 mission in 1969. The watch passed rigorous NASA testing, including resistance to extreme temperatures, shock, and vacuum conditions, proving its reliability in space. The original Moon Watch featured a manual-winding movement, the Calibre 321, which was later replaced by the Calibre 861, before, as found in this watch, the Calibre 1861 was used.

“The Omega Speedmaster Moon Watch is more than a timepiece—it’s a symbol of endurance, precision, and history. Rigorously tested by NASA and worn on the moon, its legacy continues through expert servicing and restoration, ensuring its reliability for generations to come.”

 

Diagnosing the Issue – A Broken Mainspring

The Calibre 1861 movement is a rhodium-plated version of the Calibre 861. It’s an 18-jewel mechanical chronograph movement of excellent quality. On arrival, our client’s watch can be wound indefinitely, giving a strong indication that the mainspring is broken.

To confirm our suspicions, we need to fully disassemble the movement, as the mainspring barrel is in the very depths of the mechanism. During disassembly, no major faults are found, just the usual signs of deterioration of old oils and greases. We first disassemble the chronograph mechanism, which then allows us access to the “base” movement. Once we reach the barrel and open the lid, we find the mainspring is indeed broken. This is no problem – we can fit a replacement mainspring after cleaning.

Cleaning and Reassembling the Movement

Once fully disassembled, the movement is cleaned – first going through a manual cleaning process before a cycle in our Elma Solvex RM automatic cleaning machine. When parts are completely clean and dried, we can commence reassembly. We follow the manufacturer’s technical guidelines for the correct usage and placement of oil and grease, as well as the use of other treatments such as epilame.

Case, Bracelet, and Final Testing

Alongside the movement servicing, we give the case and bracelet a thorough clean, give the bracelet a light refinish, and polish up the original Omega dome. We can now reunite all elements of the watch. With the movement refitted and everything checked on the timing machine, we close the case back before a final pressure test to confirm water resistance.

Returning the Restored Omega Speedmaster

With the works completed, we now test the watch to ensure it functions as expected before it is released for return to our client. After the testing period is complete, this fantastic Omega Speedmaster Moon Watch can be returned to our client.

We take great pride in restoring both vintage and modern timepieces from the world’s most esteemed brands, ensuring they receive the expert care and precision they deserve. Every watch holds a unique story, and we understand the significance of entrusting it to skilled hands. Our commitment to excellence means your cherished timepiece is maintained to the highest standards, preserving its legacy for years to come. If you own a vintage watch in need of repair or simply seek expert advice, we invite you to get in touch. Use our Ask the Watchmaker feature to connect with our knowledgeable team, who have extensive experience in restoring and servicing vintage timepieces. We would be delighted to assist you.

Summary:

At W.E. Clark Watch Repairs, our expert horologists deliver precision servicing for luxury timepieces. For this Omega Speedmaster Moon Watch, we diagnosed a broken mainspring, expertly disassembled and cleaned the movement, and performed a delicate reassembly following manufacturer guidelines. With advanced equipment and skilled techniques, we restored full functionality, refinished the case and bracelet, and conducted rigorous accuracy and water resistance tests before returning the watch to the client.


Looking to have your Omega Watch Serviced and Repaired?

Try our Royal Mail Special Delivery FREEPOST service, all watches are fully insured for up to £20,000 throughout their postal journey from the moment the package leaves your hand to when it is received by you. Book yours in now! 

Tag Heuer Formula 1 Calibre 16 Chronograph Service and Repair

Tag Heuer Formula 1 Calibre 16 Chronograph

Our fully equipped on-site watch workshop offers a full range of repairs – from smaller jobs like battery changes and glass replacements through to full servicing of the vast majority of brands including Omega, Tag Heuer, Longines, Breitling and Rolex.

We are an authorised service centre for Tag Heuer, so our workshop has been assessed by the brand and we are able to order the required parts to complete Tag Heuer repairs to a high standard.

“Precision restored. Performance guaranteed. Our expert service brings your Tag Heuer Formula 1 Calibre 16 Chronograph back to life—ready for years of reliable timekeeping.”

For this job we are working on a Tag Heuer Formula 1 Automatic Chronograph. This watch is working on arrival, though the date is not clicking over at 12 o’clock. It’s been a number of years since this watch last saw a watchmaker so a full service is the most appropriate intervention. First we disassemble the movement. The Tag Calibre 16 chronograph is based on the ubiquitous ETA 7750. No major faults are found, just the usual signs of deterioration of the old oils and greases.

Once fully disassembled and checked, the movement is cleaned – going through a manual cleaning process before a cycle in our Elma Solvex RM automatic cleaning machine. Once parts are completely clean and dried, we can commence reassembly of the movement. During reassembly we follow the manufacturers technical guidelines in terms of oil and grease usage, as well as the use of other treatments such as epilame.

Alongside the movement repairs we give the case and bracelet a clean and fit replacement seals before testing the complete case – minus the movement – in both a wet pressure tester and a dry tester to confirm water resistance. We can now reunite all elements of the watch. With the movement refitted and everything checked on the timing machine, we can close the case back before a final dry pressure test.

With the works completed we now test the watch using an Elma Cyclomotion watch winding machine, as well as testing in static positions and for the correct functioning of all features including the chronograph and quick date change. After the testing period is complete this fantastic Tag Heuer Formula 1 Calibre 16 Chronograph can be reunited with its owner.

Summary:

This Tag Heuer Formula 1 Calibre 16 Chronograph underwent a comprehensive service and repair at our fully equipped on-site workshop. As an authorised Tag Heuer service centre, we disassembled, cleaned, and reassembled the movement to manufacturer specifications, resolving the date-change issue and restoring the watch’s optimal performance. The case and bracelet were thoroughly cleaned, seals replaced, and water resistance tested. Following a series of rigorous functionality tests, the watch was returned to its owner in immaculate condition, ready for years of reliable use.


Looking to have your Tag Heuer Watch Serviced and repaired?

Try our Royal Mail Special Delivery FREEPOST service, all Tag Heuer watches are fully insured for up to £20,000 throughout their postal journey from the moment the package leaves your hand to when it is received by you. Book yours in now! 

Omega Speedmaster Triple Calendar Chronograph Servicing

Omega Speedmaster Triple Calendar Chronograph Servicing

Our fully equipped on-site watch workshop offers a full range of repairs – from smaller jobs like battery changes and glass replacements through to full servicing of the vast majority of brands
including Omega, Tag Heuer, Longines, Breitling and Rolex.

For this job we are working on an Omega Speedmaster. This is not a conventional Speedmaster however, as alongside the chronograph complication we have a triple calendar indicating the day,
date and month, as well as a 24 hour indicator. That gives the dial a grand total of 8 hands and two additional indicators. This watch was working on arrival though losing time when put on a
timegrapher.

“Servicing intricate watches like the Omega Speedmaster ensures every detail, from the mainspring to the chronograph, is meticulously restored for peak performance and enduring reliability.”

 

First we disassemble the movement. This Omega Speedmaster uses an Omega calibre 3606A. This is a chronometer rated version of the ETA calibre 7751. No major faults are found, just the usual
signs of deterioration of the old oils and greases. With a movement like this with multiple functions there are many more parts than a conventional “three hand” movement indicating time only. That means there’s lots more to disassemble and check.

Once fully disassembled the movement is cleaned – first going through a manual cleaning process before a cycle in our Elma Solvex RM automatic cleaning machine. When parts are completely
clean and dried, we can commence reassembly. We follow the manufacturers technical guidelines for the correct usage and placement of oil and grease, as well as the use of other treatments such as epilame.

As part of the service we fit a new mainspring and a new reversing wheel. We always endeavour to fit a new mainspring as part of a service, though it's especially important when dealing with a watch like this. The mainspring is housed inside a barrel which is buried in the very depths of the movement underneath all of the chronograph mechanism, so replacing it is not straightforward without the watch being fully stripped down.

Omega Speedmaster Triple Calendar Chronograph

Alongside the movement servicing we give the case and bracelet thorough a clean and fit replacement seals as appropriate before conducting a pressure test to confirm water resistance. We
can now reunite all elements of the watch. With the movement refitted and everything checked on the timing machine, we can close the case back before a final pressure test.

With the works completed we now test the watch using an Elma Cyclomotion watch winding machine, as well as testing in static positions and for the correct functioning of all features
including the chronograph and quick change of the day and date/month. After the testing period is complete this fantastic Triple Calendar Omega Speedmaster Chronograph can be reunited with our client.

Summary:
Our on-site watch workshop specialises in expert repairs and servicing for luxury timepieces, including complex models like this Triple Calendar Omega Speedmaster Chronograph. Through meticulous disassembly, cleaning, and reassembly, we follow the highest standards to restore precision and functionality. Key elements, such as the mainspring and reversing wheel, were replaced, and the case and bracelet were cleaned and resealed for water resistance. After rigorous testing, this remarkable timepiece was returned to our client in optimal working condition. Whether your watch requires minor adjustments or intricate servicing, our skilled team ensures exceptional care at every stage.


Looking to have your Designer Watch Serviced and repaired?

Try our Royal Mail Special Delivery FREEPOST service, all watches are fully insured for up to £20,000 throughout their postal journey from the moment the package leaves your hand to when it is received by you. Book yours in now! 

How Do You Authenticate a Vintage Watch?

How to Tell a Real Watch from a Fake

The authentication of vintage watches is a growing concern among collectors and enthusiasts, especially with the prevalence of counterfeit models from popular brands like Rolex. Proper authentication relies on expertise, experience, and a systematic approach to ensure the watch is genuine. Here’s how professionals authenticate vintage timepieces.

vintage rolex real or fake - how to tell

Start with a Visual Inspection

The first step is a detailed visual assessment of the watch. Experts evaluate whether the quality aligns with what’s expected from the brand. Key elements include:

  • Dial Quality: Authentic watches often feature finely crafted dials with precise printing.
  • Hands: The style and finish should match the brand’s known characteristics.
  • Case Construction: Materials and craftsmanship are inspected for authenticity.
  • Crown Type: For instance, a water-resistant watch claiming 200m resistance should have a screw-down crown. A mismatch is a red flag.

“If a watch claims water resistance of 200m but lacks a screw-down crown, it’s a strong indicator you may be dealing with a replica.”

Serial Numbers and Cross-Referencing

Brands like Tag Heuer and Rolex often include serial and model numbers on their watches. Using tools like the Tag Heuer Extranet, professionals can verify these numbers and cross-reference details such as the dial, hands, and movement. However, it’s crucial to note that serial numbers alone don’t guarantee authenticity, as counterfeiters sometimes replicate genuine numbers.

Inspecting the Movement

Examining the movement is one of the most critical steps in authentication. High-quality Swiss movements are often replicated with increasing precision, making this step challenging even for experts. Professionals look for signs that align with the brand’s craftsmanship and design. This process often requires the expertise of trained watchmakers and valuers.

The Role of Expertise

Authentication of vintage watches can be highly complex, especially for high-end brands. Beyond the visual and technical checks, experience and access to industry knowledge play a pivotal role. Experts can draw upon databases, historical records, and their familiarity with the nuances of vintage models to determine authenticity.

Basic Checks for Buyers

If you’re considering purchasing a vintage watch, start with the following:

  1. Quality Check: Does it feel like a premium item?
  2. Source Legitimacy: Was it purchased from a reputable dealer?
  3. Online Comparison: Can you find similar models online with consistent details?

Even if these checks align, professional evaluation is recommended to confirm authenticity.

designer watch authentication real or fake

Arrange a Professional Valuation

For a comprehensive assessment, it’s best to consult WE Clark Watch Repairs, who offer specialised and expert watch valuation services.

Summary

Authenticating a vintage watch requires careful inspection, technical expertise, and experience. While serial numbers and visual checks can provide clues, examining the movement and seeking professional advice is essential. Trust experts with industry knowledge and the right tools to ensure your vintage watch is genuine and accurately valued.


Looking to have your Designer Watch Serviced and repaired?

Try our Royal Mail Special Delivery FREEPOST service, all watches are fully insured for up to £20,000 throughout their postal journey from the moment the package leaves your hand to when it is received by you. Book yours in now! 

Breitling Chronomat Evolution Chronograph Service and Repair

We offer a full range of repairs from our in-house watch workshop. These include part jobs like battery changes and glass replacements through to full servicing of the vast majority of brands including Omega, Tag Heuer, Longines, Rolex and, as in this instance, Breitling.

Breitling Chronomat Evolution Chronograph Service and Repair banner

For this job we are working on a Breitling Chronomat Evolution Automatic Chronograph. This watch clearly has some kind of fault, as it is not working on arrival with us. The hands move freely and the date changes. The most likely fault is a broken mainspring, though we need to fully disassemble the movement to access the mainspring barrel to confirm this diagnosis. This is due to nature of this chronograph movement (a customised ETA 7750) – we need to remove all the chronograph work in order to fully access the mainspring barrel which lies underneath in the very depths of the mechanism.

During the course of movement disassembly it becomes apparent this watch hasn’t seen a watchmaker for some time as the oils and greases used to ensure correct functioning of the movement have started to dry up.

“A luxury watch is more than a timepiece; it’s a symphony of precision and craftsmanship. Servicing it isn’t just repair, it’s preserving the artistry for generations to come.”

 

As we anticipated, the mainspring was found to be broken. The mainspring acts as the source of power for the watch, so a broken mainspring means a watch is not going to work. We are able to order any part to repair these movements, so we fitted a brand new mainspring. Unless in exceptional circumstances we replace the mainspring as part of a service. This ensures we have a source of power in excellent condition.

When servicing and repairing the movement it is fully disassembled and each part is checked and cleaned – going through a manual cleaning process before a cycle in our Elma Solvex RM automatic cleaning machine. Once parts are completely clean and dried, we can commence reassembly of the movement. During reassembly we follow the manufacturers technical guidelines in terms of oil and grease usage, as well as the use of other treatments such as epilame.

Alongside the movement repairs we give the case a thorough clean. We also fit replacement seals where appropriate before testing the complete case – minus the movement – in both a wet pressure tester and a dry tester to confirm water resistance. We can now reunite all elements of the watch. With the movement refitted and everything checked on the timegrapher, we can close the case back before a final dry pressure test.

With the works completed we now test the watch using an Elma Cyclomotion watch winding machine, as well as testing in static positions and for the correct functioning of all features including the chronograph and quick date change. After the testing period is complete this fantastic Breitling Chronomat Evolution Automatic Chronograph can be reunited with its owner.

Summary:
This blog post chronicles the meticulous process of diagnosing, repairing, and servicing a Breitling Chronomat Evolution Automatic Chronograph. The watch arrived with a suspected mainspring fault, rendering it non-functional. Through full movement disassembly and cleaning, the broken mainspring was replaced, alongside other essential maintenance tasks such as lubrication, case cleaning, and water resistance testing. By adhering to Breitling’s technical standards, the watch was fully restored to optimal performance and rigorously tested before being reunited with its owner.


Looking to have your Breitling Watch Serviced and repaired?

Try our Royal Mail Special Delivery FREEPOST service, all watches are fully insured for up to £20,000 throughout their postal journey from the moment the package leaves your hand to when it is received by you. Book yours in now! 

Tag Heuer Carrera Service and Repair

We have a fantastic Tag Heuer Carrera with us today for a full watch repair and service. The first models to bear the Carrera name went to market in the mid-1960s and this range is named after the Carrera Panamerica race – so Carrera watches are rooted in the history of motor racing and sports.

This particular model is relatively modern – from within the past 20 years – though it arrived with us in poor condition. Initial inspection identifies some obvious faults with the watch. Notably it is not working and missing the crown and stem. On examination of the movement it clearly hasn’t been serviced in many years, as oils and greases have dried up and wear is identified in various components including the reversing wheels and rotor bearing.

To get this watch back to excellent order it needs significant intervention. It needs a full service with all worn parts changed. New seals are needed, as well as a new crown. The case and bracelet are very scratched and scuffed, so these will be refinished too.

Tag Heuer Carrera Service and Repair

To service a watch it is completely stripped down before the movement parts are thoroughly cleaned. We clean parts both by hand and then using our Elma specialist watch movement cleaning machine – this way we can be certain everything is in good order and as clean as we can possibly make it. During disassembly and our initial “pre-clean” we check each component is in good order. Anything worn needs to be replaced.

The movement powering this watch is a Tag Heuer calibre 5, which is based on the ETA 2824-2 – a very reliable, quality Swiss movement. As a Tag Heuer Authorised Workshop we can obtain any parts needed to repairs these watches.

After cleaning, we can commence the movement rebuild and oiling. We use a range of oils and greases to lubricate the different parts of the watch movement as per the Tag Heuer technical guidance. Once the movement is complete, the dial and hands are refitted.

To refinish the case and bracelet we use our variable speed polishing machine alongside a variety of polishing mops and compounds. The case and bracelet are fully disassembled prior to polishing – that means we separate the bezel, case middle and back, remove the case tube and glass, and remove the bracelet end links. We then work through each part, carefully refinishing each in progressive stages. Everything is ultrasonically cleaned before we can begin a final rebuild.

The case is put together with brand new seals before we can refit the freshly serviced movement. We need to adjust the length of the stem for the case, so this is cut down to length and fitted. With the watch cased up we conduct a final test on the timegrapher before closing the case back and pressure testing for water resistance. Our Sigma pressure testing machine is capable of testing watches up to a rating of 300m – more than sufficient for this model, which passed to its original water resistance rating of 50m.

All that’s left to do is thorough testing of the watch over a number of days before we contact our client to arrange return. Another job well done!


Looking to have your Tag Watch Serviced and repaired?

Try our Royal Mail Special Delivery FREEPOST service, all watches are fully insured for up to £20,000 throughout their postal journey from the moment the package leaves your hand to when it is received by you. Book yours in now! 

Tudor Oyster Prince Watch Servicing

Tudor is one of the top brands we see in our workshop. Since their re-launch in 2009 (see our blog post on the history of Tudor watches for more details), the popularity of Tudor has only increased.

This model is a vintage Oyster Prince dating from the 1970s. It’s a three hand watch (hour, minute and second hand) with no date complication. The movement is an ETA 2776 automatic with custom Tudor rotor. When well maintained these movements will last very well. Indeed, they are the predecessor to the ETA 2824-2 – a movement used in many watches produced to this day.

This watch was not working on arrival with us. Inspection of the movement revealed dried oils and greases, though nothing appeared to be broken. A full service was needed to get it back into working order.

The watch is completely stripped down before the movement parts are thoroughly cleaned. We clean parts both by hand and then using a specialist watch movement cleaning machine – this way we can be certain everything is in good order and as clean as we can possibly make it.

We use an Elmasolvex RM cleaning machine during the cleaning process. This is an automatic cleaning machine which uses a series of jars containing cleaning solution and rinse to gently but effectively clean and brighten the various components.

After cleaning, rebuilding and oiling of the mechanism can begin. We use a number of different oils and greases in different parts of the mechanism. We follow the manufacturers guidance for this as appropriate, though with vintage movements we use best practice as specific technical documentation may not be available. We fitted a new mainspring as part of the service.

The case and bracelet are given a thorough ultrasonic clean and we can then reassemble the complete watch. After a period on test both using manual winding and on our automatic winding machine, we can reunite this wonderful Tudor Oyster Prince with our client.

Yours sincerely

David Clark FGA DGA MJVA PJDip. PJGemDip.

Managing Director, JVA Registered Valuer®

W.E. Clark & Son Limited

Tag Heuer Formula 1 Chronograph Repair

Tag Heuer in its modern form was established in 1985, though the Heuer company has existed since 1860. Watches are produced both with quartz and automatic movements in a variety of different models including the Aquaracer, Kirium, Formula 1, Link, 2000 Series and Carrera.

As a Tag Heuer Authorised Workshop we are able to repair almost any Tag Heuer watch. We are able to obtain genuine Tag Heuer parts direct from the manufacturer to repair many different faults with these watches.

This particular Tag Heuer is a vintage quartz chronograph Formula 1 model from the mid-90s. It arrived to us in poor condition, with a missing top chronograph pusher, completely worn bezel and lume missing from the minute hand.

To restore it back to a good standard we first completely stripped the watch down, removing the bezel, pushers, movement, glass and seals. We then gave the case parts a thorough ultrasonic clean to remove years of dirt and debris which had primarily built up underneath the bezel.

Once the re-usable case parts are clean we can begin the restoration work. To remove the broken pusher part we used our Horia 2015 multi-functional tool. This is a fantastic piece of kit and allows us to safely drive out the broken pusher tube. We can the use it again to fit the replacement.

Now we turn our attention to replacing all the seals. With every seal swapped out and the glass and case back refitted, we can temporarily refit the crown and check for water resistance in the pressure testing machine. This way, if anything needs further attention we don’t need to remove the movement, as it hasn’t been refitted yet.

With a pressure test pass, we’re confident everything is in good shape so we can proceed with the rest of the work.

We remove the four central hands and replace the hour and minute hand. Once the hands are refitted we can fit a new battery and case up the movement, before finally fitting the brand new bezel to finish everything off.

The final task is a pressure test before we put this excellent Tag Heuer Formula 1 watch on test for to confirm timekeeping and functionality, prior to collection by our client. It’s now ready for many more years of reliable service.

Yours sincerely

David Clark FGA DGA MJVA PJDip. PJGemDip.

Managing Director, JVA Registered Valuer®

W.E. Clark & Son Limited

Rolex 3235 movement

Unveiled in 2015, the Rolex Calibre 3235 represents a significant leap forward in the evolution of Rolex movements, combining cutting-edge technology with the brand’s timeless design aesthetic.

What is Special About the Rolex Calibre 3235

One of the standout features of the Calibre 3235 is its remarkable precision. Rolex is renowned for its stringent timekeeping standards, and the Calibre 3235 is no exception. The movement boasts an accuracy rate when new of -2/+2 seconds per day, surpassing the industry standard for chronometers.

This remarkable precision is achieved through a combination of factors, including a high-precision balance wheel with a blue Parachrom hairspring, and the brands patented Chronergy escapement. The movement beats at 28,800 beats per hour. This ensures exceptional stability, allowing the wearer to rely on their Rolex timepiece for precise timekeeping in any situation.

The Parachrom hairspring, made from a paramagnetic alloy, enhances the movement’s resistance to magnetic fields; a common challenge in modern environments filled with electronic devices such as mobile phones and smart speakers.

The Chronergy escapement, another hallmark of the Calibre 3235, improves energy efficiency and reduces friction. Crafted from a nickel-phosphorus alloy, this escapement enhances the movement’s longevity and reliability.

What the Calibre 3235 Means for You

With a power reserve from new of approximately 70 hours, the Calibre 3235 ensures that the timepiece can be set aside for a weekend and still maintain accurate timekeeping upon resumption of wear. Efficiency improvements include utilising a cut out design escape wheel, and smaller pallets.

In addition to its technical prowess, the Calibre 3235 is a testament to Rolex’s dedication to innovation. The movement incorporates the brand’s patented Syloxi hairspring in the balance, a silicon-based component that further enhances resistance to temperature variations and shocks. This innovation not only improves the movement’s overall performance, but also positions Rolex at the forefront of technological advancements within the watchmaking industry.

The Rolex Calibre 3235 movement stands as testament to the continuing pursuit of increased precision and innovation. As Rolex continues to push the boundaries of what is possible in horology, the Calibre 3235 serves as an example of the brand’s commitment to excellence, helping to set the standard for quality mechanical movements in the 21st century.

If you have a Rolex watch in need of service or repair, please contact us or view our Rolex watch repair and postal services.

Yours sincerely

David Clark FGA DGA MJVA PJDip. PJGemDip.

Managing Director, JVA Registered Valuer®

W.E. Clark & Son Limited