All mechanical watches, automatic or manual wind have a power reserve. Power reserve is the charge the watch has before it needs to be wound again. In the case of automatic watches they automatically charge themselves when the wearer is moving. However when the watch does not move or when the watch is manual the [...]

The crown is simply the knob usually located at the right hand side of the case at three o’clock. It can also be located at the other side or any other position depending on model and manufacturer, as well have more than one crown. The crown is used to wind the watches as well as [...]