GenTLe Posted January 17, 2015 Report Share Posted January 17, 2015 Guys, I have a BP factory watch that has a movement (1st one I ever tried to service) that has an oscillating amplitude: it goes from 250 (+8s/d) to 221 (-11s/d). What the heck does this mean? Bad gears that do more resistance in single points? Is it fixable? Thanks, GenTLe Quote Link to comment Share on other sites More sharing options...
Rolexman Posted January 17, 2015 Report Share Posted January 17, 2015 If the amp. jumps all over the place without switching the position of the movement it is probably magnetised. Quote Link to comment Share on other sites More sharing options...
GenTLe Posted January 17, 2015 Author Report Share Posted January 17, 2015 Well it's time to get a demagnetizer so. The amplitude oscillation goes in cycles of around 2 minutes, if this can say something more... Quote Link to comment Share on other sites More sharing options...
kbh Posted January 17, 2015 Report Share Posted January 17, 2015 Could it be a slight bend in one wheel of the gear train. Every time it goes around it gets more resistance at a single point. Quote Link to comment Share on other sites More sharing options...
GenTLe Posted January 17, 2015 Author Report Share Posted January 17, 2015 Could it be a slight bend in one wheel of the gear train. Every time it goes around it gets more resistance at a single point. Actually that was my thought too... Quote Link to comment Share on other sites More sharing options...
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