slask111 Posted August 4, 2011 Report Share Posted August 4, 2011 Hi, I bought a watch with a A7750 two years ago and had it serviced by a trusted watchsmith on this forum since i love the watch and want to keep it. The watch have had a good power reserve of about 40h since that service. I have lately noticed that the power reserve now is down to about 10h. The watch works great otherwise, i have not had it in water and i never use the chrono functions. As a n00b my question is if this is something i can expect from a serviced watch? Quote Link to comment Share on other sites More sharing options...
Rolexman Posted August 4, 2011 Report Share Posted August 4, 2011 Well. A watch is like a car. You buy it in perfect condition and even when you treat it very very well it's always possible that something breaks down. A movement (like the motor in your car) is under constant strain. Riding your bike, a walk in the park, playing with your dog, running after your toddler.. it's always possible something breaks, get's loose or shifts out of place. Also a movement is never dust proof. The crown is always the entry point (when setting or winding). Maybe a little dirt or debree got in and is causing problems. Who knows? If it got a proper service it usually is something small. Just have it looked at. Quote Link to comment Share on other sites More sharing options...
slask111 Posted August 5, 2011 Author Report Share Posted August 5, 2011 Yea you are right. Its just hard to se my baby feel bad. Its maybe time for the movement to get some more love. I wont give my watchsmith a hard time Thnx! Quote Link to comment Share on other sites More sharing options...
kbh Posted August 5, 2011 Report Share Posted August 5, 2011 Probably the reversing gear or wheel or whatever it is that allows the rotor (and mainspring) to un-spin is not working correctly. Could be dirt or broken part but it's an easy fix for your watch smith. Quote Link to comment Share on other sites More sharing options...
Bike Mike Posted August 6, 2011 Report Share Posted August 6, 2011 If the PR dropped dramatically to the level you are seeing now and the watch was always keep wound then best bet is the main spring let go. Happened to me 2 weeks after I finished a service on one of my pieces. The main spring is under constant stress from expansion and contraction. This is why I now replace the main spring on every gen. Pain in the a$$ having to replace it 2 months after a full service because it let go. Quote Link to comment Share on other sites More sharing options...
maxman Posted August 6, 2011 Report Share Posted August 6, 2011 Yea you are right. Its just hard to se my baby feel bad. Its maybe time for the movement to get some more love. I wont give my watchsmith a hard time Thnx! If It were me I would contact whoever did the service. Thats not giving this person a hard time,just wondering why a fully serviced movement Is loosing PR. Im sure the person would give you some sound advice,as Bike Mike. Good luck. Mike Quote Link to comment Share on other sites More sharing options...
slask111 Posted August 8, 2011 Author Report Share Posted August 8, 2011 I will give my watchguy a shout and se if he can help. Thnx for the advice. Quote Link to comment Share on other sites More sharing options...
maxman Posted August 9, 2011 Report Share Posted August 9, 2011 I will give my watchguy a shout and se if he can help. Thnx for the advice. Good luck. Quote Link to comment Share on other sites More sharing options...
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