
This 13¼''' multi-function movement features hours, minutes, small jumping seconds at 6 o'clock, a date aperture, and a two-button chronograph measuring 1/10th seconds, 60 seconds, and 30 minutes. It includes ADD/SPLIT functions, stop-second/stop-motor capability, a time-zone mechanism, 22 jewels, and PowerDrive/PreciDrive technology with a 72-month battery life. The 251.274 CF includes both technologies, while the 251.274 CG features only PowerDrive.