Perrelet Seacraft Watches
A recent addition to the Perrelet brand, their Seacraft divers' models were launched in 2011. The three models in the initial series were differentiated by color (black, white, or blue) and model type (three hands-date, GMT, and chronograph). All models consist of a stainless steel case with a stamped, screw-down case back, and are water resistant up to 777 meters. The figure "777" references the year 1777, when Abraham-Louis Perrelet completed the first automatic self-winding movement. The classic Perrelet brand design also incorporates an automatic helium escape valve.