The Explorer, launched in 1953, sets itself apart with a simple design and a highly legible black dial with characteristic 3, 6 and 9 numerals and large index hour markers. It is a tool watch, created to tell time accurately, whatever the circumstances. Even in the dark, the dial is easy to read, thanks to the Chromalight display. Today, the Explorer is available in a 36 mm diameter – the size of the 1953 original model – as well as in a 40 mm diameter.
The Explorer II was introduced in 1971 and, in the same spirit as the Explorer, perpetuates the privilegedrelationship Rolex enjoys with exploration. Thanks to its 24-hour display comprising an additional, orange hourhand and an engraved bezel, the Explorer II allows the wearer to clearly distinguish daytime from night-timehours – a practical option in places where distinguishing day from night is difficult, such as at the poles at certaintimes of the year, and in caves – or to read the time in a second time zone.