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Oyster Perpetual

Milgauss

Milgauss
Oyster, 40 mm, Oystersteel

Oystersteel

Model features

Rolex uses Oystersteel for its steel watch cases. Specially developed by the brand, Oystersteel belongs to the 904L steel family, superalloys most commonly used in high-technology and in the aerospace and chemical industries, where maximum resistance to corrosion is essential. Oystersteel is extremely resistant, offers an exceptional finish once polished and maintains its beauty even in the harshest environments.

A Z-Blue Dial

Model features

Green sapphire crystal marked a first in watchmaking when it was introduced on the Milgauss in 2007. Now this crystal is combined with an electric blue dial, an allusion to the emblematic lightning-bolt-shaped seconds hand.

The Oyster bracelet

Model features

The design, development and production of Rolex bracelets and clasps, as well as the stringent tests they face, involve advanced high technology. And, as with all the components of the watch, aesthetic controls by the human eye guarantee impeccable beauty. The Oyster bracelet is a perfect alchemy of form and function. First introduced in the late 1930s, this particularly robust and comfortable metal bracelet with its broad, flat three-piece links remains the most universal bracelet in the Oyster collection.

3131 Movement

Model features

The Milgauss is equipped with calibre 3131, a self-winding mechanical movement entirely developed and manufactured by Rolex. It incorporates state-of-the-art technologies patented by the brand that ensure exceptional resistance to magnetic fields. Like all Rolex Perpetual movements, the 3131 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. Its architecture, in common with all Oyster watch movements, makes it singularly reliable.

An efficient shielding system

Model features

The first innovation at the heart of the Milgauss' resistance to magnetic interference is the shield inside the Oyster case. Made of ferromagnetic alloys selected by Rolex, it surrounds and protects the movement. The symbol for magnetic flux density – the capital letter 'B' with an arrow – is engraved in this magnetic shield, but only Rolex-certified watchmakers will ever see it.

Reference 116400GV
Model case
Model case
Oyster, 40 mm, Oystersteel
Oyster architecture
Monobloc middle case, screw-down case back and winding crown
Diameter
40 mm
Material
Oystersteel
Bezel
Smooth
Winding crown
Screw-down, Twinlock double waterproofness system
Crystal
Green sapphire, scratch-resistant
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
Precision
-2/+2 sec/day, after casing
Functions
Centre hour, minute and seconds hands. Stop-seconds for precise time setting
Oscillator
Paramagnetic blue Parachrom hairspring
Winding
Bidirectional self-winding via Perpetual rotor
Power reserve
Bracelet
Bracelet
Oyster, flat three-piece links
Bracelet material
Oystersteel
Clasp
Folding Oysterclasp with Easylink 5 mm comfort extension link
Dial
Z-blue
Certification
Superlative Chronometer (COSC + Rolex certification after casing)

the Milgauss

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