Product Description
Model case
- Model case
-
Oyster, 40 mm, steel
- Oyster architecture
-
Monobloc middle case, screw-down case back and winding crown
- Diameter
-
40 mm
- Material
-
904L steel
- Bezel
-
Smooth
- Winding crown
-
Screw-down, Twinlock double waterproofness system
- Crystal
-
Scratch-resistant sapphire
- Water-resistance
-
Waterproof to 100 metres / 330 feet
Movement
- Movement
-
Perpetual, mechanical , self-winding , with a magnetic shield to protect the movement
- Calibre
-
3131, Manufacture Rolex
- Functions
-
Centre hour, minute and seconds hands. Stop-seconds for precise time setting
- Precision
-
Officially certified Swiss chronometer (COSC)
- Oscillator
-
Paramagnetic blue Parachrom hairspring
- Winding
-
Bidirectional self-winding via Perpetual rotor
Bracelet
- Bracelet
-
Oyster, flat three-piece links
- Bracelet material
-
904L steel
- Clasp
-
Folding Oysterclasp with Easylink 5 mm comfort extension link
Dial
- Dial
-
Black
The Milgauss, introduced in 1956, was designed to meet the demands of the scientific community and is capable of withstanding magnetic fields of up to 1,000 gauss. It became known notably as the watch worn by scientists at the European Organization for Nuclear Research (CERN) in Geneva. The new-generation Milgauss, introduced in 2007, features several innovative components that enhance protection from magnetic interference.