Oyster Perpetual watches accompanied numerous Himalayan expeditions – including the group that Sir Edmund Hillary and Tenzing Norgay Sherpa were part of when they became the first climbers to reach the summit of Everest on 29 May 1953 – and have been worn by explorers venturing to the far corners of the globe, through deserts, at the poles or in the depths of the Earth. In these often harsh and unfamiliar environments, distinguishing day from night can become impossible. For speleologists, who spend days at a time in darkness, or polar expeditions travelling under the midnight sun or through endless night, the Explorer II, with its 24-hour display, is an essential part of their equipment.

تديم ساعة إكسبلورَر II، التي صدرت عام 1971 بنفس روح سابقتها إكسبلورَر، العلاقة المميزة التي تتمتع بها رولكس مع عالم الاستكشاف. تُساعد ساعة إكسبلورَر II مرتديها على التمييز بوضوح بين توقيت النهار وتوقيت الليل بفضل عرض 24 ساعة الذي يحتوي على عقرب ساعات برتقالي إضافي وإطار منقوش، وهي وظيفة عمليَّة في الأماكن التي يصعب فيها التمييز بين النهار والليل مثل في القطبين في أوقات معينة من السنة والكهوف أو لقراءة الوقت في المنطقة الزمنية الثانية.

The Explorer II is an extremely legible watch in all circumstances. The simple high-contrast dial is easy to read even in the dark thanks to the Chromalight display; the hour markers and hands are filled or coated with a luminescent material emitting a long-lasting blue glow.

The Explorer II is equipped with calibre 3285, a self-winding mechanical movement entirely developed and manufactured by Rolex. A consummate demonstration of technology, this movement carries a number of patents. It offers outstanding performance, particularly in terms of precision, power reserve, convenience and reliability.

The Explorer II is covered by the Superlative Chronometer certification. This exclusive designation is issued to each watch leaving the Rolex workshops, attesting to its excellent performance on the wrist. This in-house certification is strictly controlled by internationally recognized, independent Swiss entities.

The Superlative Chronometer status is symbolized by the green seal that comes with every Rolex watch and is coupled with an international five-year guarantee.