Expert Watch Battery Replacement

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    Your timepiece is FULLY INSURED (upto £20,000) by us when using our Freepost Repair Service. All work is fully guaranteed for 1 year

    Feefo Trusted Service Award 2025

    Watch Battery Replacement, Pressure Testing & Resealing by W.E. Clark & Son

    At W.E. Clark & Son, we provide a professional watch battery replacement and pressure testing service for all watch brands, including authorised TAG Heuer battery replacement. Every watch is resealed and returned with a water resistance guarantee based on its pressure test results—giving you complete peace of mind and ensuring the integrity of the internal mechanism.

    We use a state-of-the-art Sigma pressure testing machine, now in-house, capable of testing up to 30 bar (300 metres). This allows us to confidently reseal watches to a professional standard, including luxury dive models.

    Our watch battery and pressure test service is available at our Lewes and Uckfield shops, with in-house pricing starting from just £5.50 for battery replacement and £35.00 for pressure testing. We also offer a convenient Freepost service—simply pack your watch securely and let us take care of the rest. Need a quote? Just contact us using the form below.

    As experts in watch repair, we understand how to reseal a waterproof watch properly. Our team of Master Watchmakers ensures that after every watch battery replacement and reseal, your timepiece is tested to verify that seals are intact and the case is secured to manufacturer standards.

    We are proud to offer TAG Heuer battery replacement and pressure test services with meticulous attention to detail, preserving both performance and warranty compliance. Whether you’re wearing a classic timepiece or a modern diver’s watch, correct resealing is critical—and we never compromise on quality.

    FREEPOST Watch Repair Service

    We offer a fully insured postal repairs service for clients across the UK. Request your free pre-paid packaging and send your watch to us for a no-obligation estimate today!

    Water Resistant Watch-depth Rating Guide:

    Here at W.E. Clark & Son, we follow industry standard definitions of water-resistant depth ratings indicated on either the watch case or dial.
    Our new £20,000 Sigma water resistance in-house tester is capable of reaching pressures up to 30Bar or 300 metres. This means we can test even the most highly water resistant watches to check whether their seals are still protecting your watch after a battery replacement or service.

    No labelling on case or dial: not resistant to splashing or contact with moisture of any kind.
    Water-resistant: 30M / 100Ft / 3ATM / 3Bar: will resist moisture from accidental splashing, rain, sweat etc. Not suitable for immersion.
    Water-resistant 50M / 160Ft / 5ATM / 5Bar: will resist moisture from accidental splashing, rain, and showering or swimming.
    Water-resistant 100M / 300Ft / 10ATM / 10Bar: watch may be worn during swimming, snorkeling and skin diving, if properly sealed.
    Water-resistant: 200M / 660Ft / 20ATM / 20Bar: watch may be worn during standard scuba diving.
    Water-resistant: 300M / 1000Ft / 30ATM / 30Bar: watch may be worn during scuba diving and saturation diving.

    We strongly advise against operating pushers or crowns underwater unless specifically approved in your watch’s manual. All case backs must be fully tightened post-service to maintain water resistance.

    Our expert services extend to luxury watch repairs, watch restoration, and old watch repair—trusted by collectors and enthusiasts alike. As a longstanding provider of watch repairs in Lewes, W.E. Clark & Son is your reliable destination for professional watch repair and precise resealing.

    Take advantage of our FREEPOST service today—your watch will be returned via fully insured Royal Mail Special Delivery. For guidance on how to package your timepiece, check out our helpful “How To” videos on the FREEPOST Watch Repairs page.

    Our FREEPOST Watch Repair Process:

    At all times, it is essential that the case back and crown be properly tightened if applicable after the watch battery is replaced. Any buttons must not be operated when the watch is submerged unless approved in the operating manual for the watch, as this will invalidate your pressure test guarantee.

    Make the most of our extensive FREEPOST service by simply packing up your watch and sending it to us. See our How To Videos on the FREEPOST Watch Repairs page for more information on how to do this securely. Once your watch battery has been replaced we will post it back to you using Royal Mail special next day delivery, fully insured.

    Why WE Clark Watch Repairs?

    Quality – Whether it’s an pocket watch repaira specialist glass replacement, or work specific to our Tag Heuer authorised service centre, our award-winning team are experts in watch repair, are renowned for their attention to detail.

    Experience – As a fourth-generation family business, we are passionate about providing first-class luxury watch repairs and we ensure every timepiece receives expert care from our watch repairer team, headed by our experienced Master Watchmaker.

    Trusted – We pride ourselves on exceptional customer service, holding a Feefo Platinum Trusted Service Award. Our clients regularly leave glowing testimonials on Feefo and Google, reflecting our reputation as trusted experts in antique watch repair, watch restoration, and more.

    Convenience – Our fully insured Freepost Repair Service caters to clients across the UK, making it easy to access our expert watch repair services. For local customers, we also offer in-store watch service and watch repairs in Lewes and Uckfield.

    Our Guarantee

    We will take care of your antique pocket watch from start to finish. Our Master Watchmaker will carry out repairs and restoration work with the utmost sensitivity and expertise. We are absolutely confident you will be delighted with the results, but for peace of mind, we offer a minimum 12-month guarantee for all work undertaken.

    Watches We Repair Include: