Rolex caliber 1556

Rolex caliber 1556
Brand:Rolex
Reference:1556
Movement:Automatic
Display:Analog
Diameter:28.50
Jewels:26
Frequency:19800
Date:Date, Day
Hands:Hours, Minutes, Seconds
Additionals:Chronometer

Description

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

All watches using this caliber: