Explorer II Stainless Steel / Black

In Context

At 42 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. 50 hours of reserve is enough to set it down on Friday evening and find it still running on Monday.

216570-0002 is one of 2 executions of the 216570 base reference. Underneath they are the same watch; what separates this one is a black dial and a stainless steel case.

In addition to the conventional hour, minute and seconds hands, the 3187 features a 24-hour hand to display a second time zone. This movement is fitted with a Parachrom hairspring and Paraflex shock absorbers, offering greater resistance to shocks and to extreme conditions. Like all Rolex Perpetual movements, the 3187 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. Its architecture, in common with all Oyster watch movements, makes it singularly reliable.

1 other watch in the library runs the Rolex 3187.

Rolex

Explorer II Stainless Steel / White

216570-0001 · 42 mm