Rolex 3075

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Cal. 3075 is an automatic GMT movement produced by Rolex from 1981 through 1988.

Overview

Self-winding movement, bi-directional winding, 28,800 A/h, 27 jewels, GMT function (dual time zone) and date indication.

Used in the model GMT-Master Ref. 16750.

In contrast to the later calibre Rolex 3085 the 24-hour hand is not separately adjustable.

Manufacturer:

Rolex

Description:

Self-winding movement, bi-directional winding
Chronometer certificate (COSC)
Breguet hairspring
Microstella precision adjustment with regulation screws
Kif shock protection

Functions:

Central seconds
Rapid calendar advance
Hacking seconds
GMT function (dual time zone) in 24-hours mode

Data:

12½ lignes
D 28.5 mm, H 6.3 mm
27 jewels
28,800 A/h
Power reserve 42h

Production period:

Production: 1981-1988
Predecessor: Rolex 1575GMT
Successor: Rolex 3175

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