Rolex 1556

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.

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Description:

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Data:

  • D 28.5 mm
  • 26 jewels
  • 19,800 A/h

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