The Rado 2797309 watch movement is an automatic chronograph movement produced by Omega during the period of 1970-1980. It is based on the Lemania 1340 movement and features an additional 24-hour hand. The 1041 variant of this movement is similar but holds the additional distinction of being chronometer-certified. The movement incorporates various functions, including a center-minute and -second chronograph with cam switching for 60-second, 60-minute, and 12-hour measurements. Additional functions include a sub-second counter, quickset date display, and a 24-hour display.