Watch including a pressure sensor

A watch including a case provided with a back cover resistant to ambient pressure, a pressure sensor mounted in an orifice of the back cover with an intermediate ring, and a printed circuit element connected to the terminals of the pressure sensor, said sensor including a rigid substrate provided with said terminals, a tubular casing secured to the substrate in a water-resistant manner and arranged to fit into the intermediate ring, and a pressure-sensitive element, which is mounted on the substrate and located inside the tubular casing,

• said watch including a sensor module including at least the intermediate ring, the pressure sensor, the printed circuit element and a sensor support placed against the printed circuit element on the opposite side to said sensor and arranged to withstand the force resulting from the ambient pressure on the sensor, said force being transmitted from said support to the back cover by members for securing the sensor module, wherein the sensor module is mounted in a water-resistant manner and centred in the orifice of the back cover and wherein the intermediate ring includes feet arranged to engage in positioning holes of the printed circuit element without any play.