251.264 PRD

PowerDrive/PreciDrive movement measuring 13¼''' in diameter, 30.00 mm wide, and 5.00 mm high. It displays hours, minutes, and a small jumping second at 6 o'clock, includes a date window, a two-button chronograph with 12-hour, 30-minute, 60-second, and 1/100th-second counters, plus ADD, SPLIT, and stop-second/stop-motor functions, a time-zone mechanism, 27 jewels, and an estimated 72-month battery life.