Swiss made, automatic, 28.80 mm/7.60mm, 4Hz (28,800 vph), 310 parts, 45 jewels, 60-hour power reserve. Balance wheel with four spokes, micro-regulator with screws. Flat balance spring. Bridges with see-through engine finish, circular-grained mainplate. COSC certified chronometer. Hours, minutes, small seconds, date, chronograph seconds hand, 30-minute counter, 12-hour counter, chronograph, flyback function, tachymeter, stop seconds.