Pressure measuring device for watch i.e. immersion watch, has pressure sensor unit, which has shape of bellows that are subject to effect of pressure in direction of deformation, where pressure mass is function of parameter of deformation

摘要

The device (25) has a sensor (26) for measuring pressure of surrounding area, and a display unit (28) for displaying the pressure or a parameter, which depends on the pressure. The sensor has a pressure sensor unit, which has a shape of bellows (40) that are subject to the effect of the pressure in a longitudinal direction of deformation, where the pressure mass is a function of the parameter of the longitudinal deformation. The shape of the bellows is cylindrical, and ribs (42) of same diameter are provided in the bellows.