Oyster, 40 mm, Oystersteel
- Model Case: Oyster, 40 mm, Oystersteel
- Bezel: Smooth
- Water-Resistance: Waterproof to 100 meters / 330 feet
- Movement: Perpetual, mechanical , self-winding , with a magnetic shield to protect the movement
- Calibre: 3131, Manufacture Rolex
- Power Reserve: Approximately 48 hours
- Bracelet: Oyster, flat three-piece links
- Dial: Z-blue
- Certification: Superlative 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.
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.
All Rolex watches are assembled by hand with the utmost care to ensure exceptional quality. Such high standards naturally restrict Rolex production capacity and, at times, the demand for Rolex watches outpaces this capacity.
Therefore, the availability of certain models may be limited. New Rolex watches are exclusively sold by Official Rolex Jewelers, who receive regular deliveries and independently manage the allocation and sales of watches to customers.
Fink's Jewelers is proud to be part of the worldwide network of Official Rolex Jewelers and can provide information on the availability of Rolex watches.
The reliability and precision of an ordinary mechanical watch can be affected by a magnetic field of 50 to 100 gauss. But many scientists are exposed to much higher magnetic fields during the course of their work. Rolex’s solution was the Rolex Milgauss, created in 1956, the first watch of its kind. Hence the name of the watch, mille being French for thousand.