Reference 116900

Model Case

Oyster, 40 mm, Oyster steel

OYSTER ARCHITECTURE

Monobloc middle case, screw back case, crown

Diameter

40 mm

Material

Oyster steel

BEZEL

Smooth

Crown

Screw-type, twin-locked (double-sealed)

Crystal

Scratch-resistant sapphire

Water resistance

Water resistant to 100 m / 330 feet

Movement

Perpetual, mechanical, self-winding, magnetically shielded to protect the movement

Caliber

3131, Manufacture entirely in-house by Rolex

Accuracy

Daily difference -2 to +2 seconds (after casing)

Functions

Central hands for hours, minutes and seconds. Seconds hands stop function for accurate time setting.

Oscillator

Paramagnetic blue parachrom hairspring

Winding

Bidirectional automatic winding by perpetual rotor

Power reserve

Approx. 48 hours

Bracelet

Oyster with 3 rows of links

Bracelet material

Oyster steel

Clasp

Oyster clasp, easy links (approx. 5 mm extension links)

Dial

Black

Details

Chromalight display (long-lasting blue luminescence)

Certifications

High-precision chronometer (COSC, Rolex-certified after casing)