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When you get a watch serviced is the WR value maintained?
A full service should include seals (caseback and crown) and a pressure test, which is quite complex but can be carried out to any water resistance value. A movement service doesn't need to be included with a pressure test but this is usually done at the same time. Ask your watchmaker whether he can do a pressure test. Typically a pressure test will cost in the region of £50-£75 I believe, with a full movement service (not just adding some oil but fully disassembling, cleaning and reassembling the movement) should cost no less than £300, depending on the movement and whether parts need replacing.
freddo
Stonehedge
Prob a silly question but how does water-resistance work? Is it literally the ingress of water into the mechanism or does it account for other aspects of pressure? When you get a watch serviced is the WR value maintained.
Just bought a diver (of course I don’t dive) - so I’m wondering how/who to service.