Model caseOyster, 40 mm, Oystersteel
Water-resistanceWaterproof to 100 metres / 330 feet
MovementPerpetual, mechanical , self-winding , with a magnetic shield to protect the movement
Calibre3131, Manufacture Rolex
Power reserveApproximately 48 hours
BraceletOyster, flat three-piece links
DialHighly legible Chromalight display with long-lasting blue luminescence
CertificationSuperlative Chronometer (COSC + Rolex certification after casing)
Green sapphire crystal
The green sapphire crystal is a unique watch crystal developed by Rolex, it is scratchproof, fade-proof and available exclusively on the Milgauss. Its light green shade, tinted throughout the entire crystal, turns nearly luminescent at the bevelled edges. The result of a secret process that required years of development to master and takes weeks to produce.
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.
Rolex uses Oystersteel for its steel watch cases. Specially developed by the brand, Oystersteel belongs to the 904L steel family, alloys 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.
The Oyster Perpetual Milgauss is a pioneering anti-magnetic watch designed to meet the demands of engineers and scientists. Created in 1956, it can withstand magnetic fields of up to 1,000 gauss. Hence its name, “mille”, which is French for one thousand. The first watch of its kind, the Milgauss highlights the historic links between Rolex and scientific research.
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* All prices are Rolex's suggested retail prices inclusive of V.A.T. Prices can be modified at any time without notice.