Rolex · Automatic

1556

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

Rolex caliber 1556 movement
Winding
Automatic
Frequency
19,800 vph (2.8 Hz)
Jewels
26
Diameter
28.5 mm

Watches with this movement

13

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