Rolex Oyster Perpetual Explorer II

Rolex Oyster Perpetual Explorer II is an extreme professional watch, and highly valued by mountaineers and speleologists, for its rugged durability and reliability in countless expeditions to every corner of the globe.

Equipped with an additional, red 24-hour hand and a fixed 24-hour graduated bezel, the Explorer II allows simultaneous reading of the time in two time zones and makes it possible to distinguish night hours from day hours, a necessity for speleologists or polar explorers. It is equipped with a 12-hour hand that can be set independently from the minute hand, thus allowing the wearer to set the watch for a new time zone while the minute hand continues to function, maintaining the exact time.

The Oyster Perpetual Explorer II has over time confirmed its qualities of robustness and reliability during numerous expeditions. The original Explorer model was the watch that, in 1953, accompanied Sir John Hunt, Sir Edmund Hillary and Tenzing Norgay on their victorious ascent of Everest.

Self-winding, equipped with a Perpetual rotor and certified by the Swiss Official Chronometer Testing Institute (COSC), the Oyster Perpetual Explorer II is guaranteed waterproof to a depth of 100 metres (330 feet). It features a sapphire crystal with a Cyclops lens and a Twinlock winding crown protected by shoulders.

Technical details
Calibre: 3186
Self-winding: Perpetual rotor
Power reserve: 48 hours
Date: Instantaneous change
Oscillator Frequency : 4 Hz (28,800 beats/hour), hairspring with a Breguet overcoil
Chronometer: COSC certification

Diameter: 40 mm
Material: 904L steel
Case: Fixed 24-hour graduated bezel, shoulders to protect the crown
Waterproofness: 100 m (330 ft)
Winding crown: Twinlock
Crystal: Sapphire with Cyclops lens

Oyster with Oysterlock clasp

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