Rolex cal. 1600
The Rolex cal. 1600 and its iteration – caliber 1601 are in-house Manual winding movements with 17 or 19 jewels. Originally cal. 1600 was introduced by Rolex in 1964 and has a frequency of 19,800 and a power reserve of 48 hours. The movement is known for its reliability and precision, making it a good choice for vintage Rolex watches.
