Le Locle Open Heart 39.3mm T0064072203302

The Le Locle Powermatic 80 Open Heart is an authentic expression of Tissot signature style. This classic design features an Open Heart design so that you can easily see the beauty of the Powermatic 80 movement. The see-through case back is engraved with a traditional Le Locle signature as an additional measure of authenticity. All Tissot watch cases undergo several tests, including a water resistance check. Tissot tests the watch's ability to resist impacts and pressure, as well as the penetration of liquids, gas and dust by replicating the real-life conditions in which the watch may find itself*.

Source: Tissot website, last updated Mar 2026