The Maurice Lacroix Masterpiece Chronograph (reference MP6318) is a men's sunglass watch from the prestigious Masterpiece collection. Also known as the Croneo, this model combines the classic look of a dress watch with the functionality of an automatic chronograph. Movement: Automatic caliber ML 67, based on the reliable Swiss ETA/Valjoux 7750 movement. Case: Stainless steel, 40 mm in diameter and 14 mm thick. Functions: Chronograph (central seconds hand, 30-minute and 12-hour counters). Day of the week (at 3 o'clock) and date (at 6 o'clock). Small seconds at 9 o'clock. The watch has been serviced and runs accurately.