Rolex caliber 1556
Rolex · Movement

Rolex caliber 1556

Ref. 1556

Fourth generation of Rolex Day-Date movements. Beat increased to 19800 bph. Introduced around 1965. Hacking feature added in 1972.

Type
Automatic
Display
Analog
Frequency
19800 vph
Jewels
26
Diameter
28.5 mm
Complications
Chronometer, Date, Day, Hours, Minutes, Seconds