Rolex 1556

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The Rolex 1556 was the fourth-generation Day/Date movement from Rolex.

Introduced in 1965, Cal. 1556 added faster 19,800 A/h beat rate to the Day/Date complication. It is an automatic movement and a certified chronometer. Hacking seconds were added in 1972.

Manufacturer:

Rolex

Description:

Self-winding movement, bi-directional winding
Chronometer certificate

Functions:

Central seconds
Hacking seconds
Day/Date

Data:

D 28.5 mm
26 jewels
19,800 A/h

Production period:

1965-1977
Predecessor: Rolex 1555
Successor: Rolex 3055