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Rolex 1556
Last updated: July 26, 2025
Brand
Caliber Number
1556
Production Period
1965-1972
Lignes
12.5
Diameter
28.50mm
Height
7.05mm
Power Reserve
Unconfirmed
Frequency
19,800 vph (2.75 Hz)
Jewels
26
Escapement
Swiss Lever
Anti-Shock Device
KIF
Hand Count
3
Manufacture Region
Unconfirmed
Functions
Hours, Minutes, Central Seconds, Day, Date, Hacking Seconds
Rolex 1556 Description
The Rolex Caliber 1556 is a prestigious automatic movement, famous for powering the Rolex Day-Date “President” models. As an evolution of the Caliber 1555, it introduced a higher beat rate of 19,800 vph and a hacking seconds feature for enhanced precision. This COSC-certified chronometer is defined by its signature complication that displays both the date and the day of the week spelled out in full, solidifying the Day-Date’s position as a flagship luxury watch.
Watches Using The Rolex 1556 Caliber
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