Technicum Le Locle Triple Date Moonphase Chronograph “Datocompax” School WatchThis moonphase and annual calendar complication chronograph, known as a Dato Compax, is a particularly special piece! Referred to as a school watch or montre cole, this watch was created by a watchmaking student as part of their practical dissertation to graduate. Swiss technical colleges, like the Technicum in Le Locle, were established in the late 19th century to meet the demand for formally trained watchmakers, a crucial role in Switzerlands