Originally Posted by
BokCh0y
Don't think there's anything wrong with your watch winder to be honest. I have a Wolf winder and I noticed that some of my watches are off too by x time, but it's not my winder stopping, rather it's my watches all need servicing and I've been cheap with that exception for my Rolex's.
There are also winding and rotation parameters btw for your watches. For my Tag's for example, the Calibre 5 movement have a winding direction of both with the turns per day at 650; whereas my Calibre 16 movement are clock wise rotation only with a 800 turn per day rotation. My Rolexes are both directions for winding direction and 650 for turns per day each.
I noticed that for my one Tag with the Calibre 16 movement, I inadvertently set it to counter-clockwise instead of clockwise and my watch actually stopped winding completely. May also have been the watch really needed servicing too and it stopped, but it certainly falls behind quite a bit even with set to clockwise rotation but I know this particular watch has an issue with the mainspring.
You can also buy or see if there is someone here that has a timegrapher you can use that calculates the amplitude and beat rate of your watch to measure and assess it's accuracy. This will usually tell you if your movement requires servicing or not. Or straight-up, could be your watch winder is stopping but you don't know when.