Rolex 3155

The Rolex 3155 was the sixth-generation Day-Date movement from Rolex.

Overview

Introduced in 1988, Cal. 3155 replaced Cal. 3055 in the famous Rolex Day-Date range. It is an automatic movement running at 28,800 A/h and a certified chronometer.

Basing on the calibre Rolex 3135, with additional day of week indication. Cal. 3155 is used in the Day-Date Ref. 118000 and remained in production until 2019. Cal. 3155 was updated with a Parachrom hairspring by 2013.

The larger Rolex 3156 was used in the Rolex Day-Date II. The new Rolex Day-Date 40, launched in 2015, uses the next-generation Cal. 3255, as does the next-generation Day-Date 36, launched in 2019.

Manufacturer: Rolex Description: Self-winding movement, bi-directional winding Breguet hairspring Chronometer certificate (COSC) Escapement: Stone lever Yoke winding system Glucydur balance wheel with microstella screws Kif shock protectionen für balance wheel and escape wheel Functions: Central seconds Rapid calendar advance Hacking seconds Complications: day of week indication Data: 12½ lignes D 28.5 mm, H 6 mm 31 jewels 28,800 A/h Power reserve 48h Production period: Production: 1988-2019 Predecessor: Rolex 3055 Successor: Rolex 3255

External Links

• Rolex 3155