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. 70 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 28,800 vph the seconds hand advances 8 times a second.

226570-0002 is one of 2 executions of the 226570 base reference. Underneath they are the same watch; what separates this one is a black dial and a stainless steel case. Introduced in 2021.

The 3285 is the GMT-Master II movement since 2018: the Chronergy generation with a second time zone, ten patents and a 70-hour reserve. It powers 19 watches in this library. It is the [3235](/calibers/rolex-3235) architecture with a 24-hour hand: the Chronergy escapement, the blue Parachrom hairspring, Paraflex shock absorbers, 31 jewels and a beat of 28,800 vph at 28.5 mm across, with the local hour hand jumping independently in one-hour steps so a traveller sets it without stopping the watch. Every one is a Superlative Chronometer, tested to two seconds a day after casing. The glossary explains the [GMT](/glossary/gmt) distinction it sits on the "true" side of. In the library it powers 17 [GMT-Master II](/brands/rolex/gmt-master) references of the 1267xx generation, the Pepsi and Batman in steel, the Everose Root Beer and the yellow gold, and 2 Explorer II 226570s of 2021 at 42 mm. The [3186](/calibers/rolex-3186) is the 50-hour GMT movement it replaced, and the [9002](/calibers/rolex-9002) the Sky-Dweller's movement of the same generation.

18 other watches in the library run the Rolex 3285.

Rolex

Explorer II Stainless Steel / White

226570-0001 · 42 mm

Rolex

GMT-Master II Yellow Gold / GRNR / Tiger Iron / Jubilee

126718GRNR-0002 · 40 mm

Rolex

GMT-Master II Stainless Steel / BLRO / Oyster

126710BLRO-0002 · 40 mm

Rolex

GMT-Master II Yellow Gold / GRNR / Jubilee

126718GRNR-0001 · 40 mm