Rewind a mechanical watch

When automatic watch is not worn for a long time, his self back stroke (42 to 48 hours, depending on the model) stops. To run it, unscrew the crown if necessary (depending on model) and screw mechanism manually by turning the crown 30-40 times. This will force the clock to function normally. Mechanical clock must be wound daily winding is complete when the crown can be turned over (tighten). It is very important not to force rewind crown to avoid damaging the mechanism.