Rolex cal. 1130
The Rolex cal. 1130 is an in-house developed self-winding (automatic) mechanical movement used in some vintage Rolex Oyster Perpetual watches. It was introduced in the mid 1950s and features a frequency of 19,800 beats per hour (A/h) and a power reserve of 40 hours, 26 jewels and their Perpetual winding rotor.
