Montre avec organe indicateur de la marée.

摘要

Watch comprising a tide indicator member consisting of a tidal chart comprising a semi-diurnal tidal curve (6.10) with markers moving at constant angular velocity, dependent on the mean period, over a year, of the tide, concentric with a reading chart comprising a reading marker (4.10) which determines, through its point of intersection with the tidal curve, the level of the tide corresponding to the time indicated by the handwork of the watch.