Invisible solar cells in the watch convert light into energy and supply all functions. A rechargeable battery provides the necessary capacity for operation in poor light conditions.
The screw connection on the base of the housing optimally protects the inner workings of the watch and simultaneously provides easy access, when changing the battery for example.
Technical amendments and errors excepted for all watch models shown here. The sizes depicted are not the actual sizes. The colours shown may differ slightly from the actual colours.