Here's why a watch winder won't cause a watch to slow down:
Over-winding prevention:
Modern automatic watches have a slip-clutch mechanism that disengages the winding gears once the mainspring is fully wound. This prevents the watch from being over-wound, even if the winder continues to rotate.
Simulated wear:
Watch winders are designed to replicate the natural movements of the wrist, which is how automatic watches are typically wound.
Correct settings:
It's important to use the correct Turns Per Day (TPD) and rotation direction settings on the winder, as recommended by the watch manufacturer, to ensure the watch is wound properly and without causing undue stress.
Potential for wear, not slowing down:
While excessive and incorrect winding can lead to wear on the movement, this is a separate issue from the watch slowing down. If the watch winder box is set incorrectly, it could potentially cause premature wear on the winding mechanism, but this wouldn't necessarily make the watch run slow.
Slow down due to other factors:
If a watch is slowing down, it's more likely due to other factors like the watch needing service, the mainspring needing replacement, or the watch having positional errors.
