Swiss Watch Fair 1972 BF 252
This divers’ chronograph is equipped with a bathometer (or depth meter) of an entirely new design, working as it does on a water prcssure basis. It contains no moving parts and sand or salt penetration is inexistent. This model has been tested (to 70 atmospheres or 700 metres) at the Research and Dynamic Tests Centre (CREDE) of Neuchâtel as well as at the Testing Bureau for Waterproof Watch Cases in Bienne The chronograph itself can withstand a pressure of 20 atmospheres (NICOLET WATCH “Profondimètre”)