berns 0 Posted December 1, 2017 I've got two reps from the same dealer (that look great), but I have an issue with them speeding up after I wear them for more than a few days in a row. Is this a common issue with the movement or type of watch? Below are the watches and movements contained within each. Rolex Day Date II (41mm), Nickle Plated Asian Clone (Rolex 3156) Automatic Movement, 25J, 28800bph - speeds up after about 3 days, but just a few minutes Tag Heuer Carrera Chrono, Asia 7750 Valjoux Working Chronograph movement, 28800bph, Perforated Insignia Engraving on Rotor, Functional Regulator - speeds up after about 3 days, needs to be reset a few times a day after Share this post Link to post Share on other sites
Griffo 6 Posted December 1, 2017 Watches with automatic movements, whether genuine or replica, will always gradually run faster or slower. Completely normal! Share this post Link to post Share on other sites
RussP 22,221 Posted December 1, 2017 The solution would be to take them to a rep-friendly watch smith and have them regulated. It shouldn't cost very much at all. Share this post Link to post Share on other sites
GenTLe 1,501 Posted December 1, 2017 Take care: if you go near magnetic fields (sometimes even a microwave oven is enough) they can get magnetized and start to run... Typically if from one day to another they get +30s/d that's the cause... See here: http://wornandwound.com/watches-and-magnetization/ Share this post Link to post Share on other sites
raxford 0 Posted December 1, 2017 If it is magnetized it's not a huge deal How to Demagnetize a Mechanical Watch (Seiko Orange Monster ... Share this post Link to post Share on other sites
berns 0 Posted December 1, 2017 Thanks for the input! I'll see if it's magnetized first and go from there. Share this post Link to post Share on other sites
wobble44 98 Posted December 2, 2017 I think I need one of these for my sub Share this post Link to post Share on other sites
dirkhunt 0 Posted December 2, 2017 Use a compass to check if your watch has been effected. Share this post Link to post Share on other sites
NDJ 19 Posted December 2, 2017 I have found the same with some of my Chinese clone movement replicas. They can keep time very well and then suddenly they speed up. They revert back to normal after demagnetising them but also revert back by themselves if I don't. (Apparently watches can demagnetise by themselves gradually) I think the Chinese eta clones vary in quality and are often put together with whatever alloys are available. Clearly sometimes antimagnetic alloys aren't used for the mainsprings. I find that using electric power tools can magnetise watches due to the powerful magnetic fields generated. And my phone has a magnet in its flip open case so if I put my watch in my gym bag next to my phone - bang - it's magnetised. Having said that, some of my clone movement watches never have a problem with magnetisation, so it's very much a case of hit or miss in this regard. Share this post Link to post Share on other sites