Oyster, 42 mm, Oystersteel
Monobloc middle case, screw-down case back and winding crown
Fixed, 24-hour graduated
Screw-down, Twinlock double waterproofness system
Scratch-resistant sapphire, Cyclops lens over the date
Waterproof to 100 metres / 330 feet
Perpetual, mechanical, self-winding, GMT function
3285, Manufacture Rolex
-2/+2 sec/day, after casing
Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
Chronergy with optimized energy efficiency
Bidirectional self-winding via Perpetual rotor
Approximately 70 hours
Oyster, flat three-piece links
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
Highly legible Chromalight display with long-lasting blue luminescence
Superlative Chronometer (COSC + Rolex certification after casing)
The Explorer II is equipped with an additional 24-hour display; a dedicated hand circles the dial in 24 hours rather than the usual 12, pointing to a fixed bezel with 24 hour graduations. This function enables the wearer to distinguish the hours of the day from the hours of the night, an essential feature for those who venture into environments where darkness reigns supreme – such as in the depths of caves, or where the sun never sets – like the polar regions in summer.
The Explorer II features a date display, an additional orange 24-hour hand and a fixed bezel with 24-hour graduations, enabling day to be distinguished from night. It became the watch of choice for speleologists, volcanologists and polar explorers. Its hour markers and hands feature a highly-legible Chromalight display with long-lasting blue luminescence.
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 Retailers, who receive regular deliveries and independently manage the allocation and sales of watches to customers.
Siam Swiss is proud to be part of the worldwide network of Official Rolex Retailers and can provide information on the availability of Rolex watches.
The Explorer models embody the privileged relationship that has always bound Rolex and exploration. Since the late 1920s, Rolex has been using the world as a proving ground to test its watches under real-life conditions, in the quest for greater precision, robustness and reliability.
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