Shown: reference 226570-0001
Rolex

Explorer II Reference 226570-0001

Known to collectors as the Polar · 2021 to present

Overview

The Rolex Explorer II comes in a 42 mm Oystersteel case. The movement is the self-winding Rolex calibre 3285, with a 70 hour power reserve. Water resistance is 100 metres. This model is listed with 2 references, varying in dial colour (white and black).

Rolex introduced the Explorer II in 1971 as a companion to the original Explorer, intended for cave explorers who needed to tell day from night underground. About the Rolex Explorer II

Case diameter
42 mm
Movement
Calibre 3285
Water resistance
100 m
Power reserve
70 h

Specifications

Specifications from the1916company.com. Last checked . Sources

Case

Diameter
42 mm
Material
Oystersteel
Crystal
Sapphire, Cyclops lens over the date
Water resistance
100 m
Bezel
Fixed, 24-hour graduated

Dial

Colour
White

Movement

Calibre
Rolex 3285
Type
Automatic
Power reserve
70 h

Bracelet or strap

Bracelet or strap
Oyster, three-piece solid links

Not yet recorded: thickness, lug width, lug-to-lug, case back, shape, indexes, hands, functions, years.

Sources

  • the1916company.com: case, water resistance, dial, movement, bracelet. View sources

Missing values are shown as not yet recorded, never estimated. How we source our data

MovementRolex calibre 3285Specifications and every watch that uses it

Other versions of the Explorer II

The Rolex Explorer II covers 2 references, with a 42 mm case. All use the Rolex calibre 3285. Includes the Polar (226570-0001).

Each version

  1. 226570-0001

    White dial · Oystersteel · 42 mm

    Known to collectors as the Polar · 2021 to present

    View specifications
  2. 226570-0002

    Black dial · Oystersteel · 42 mm

    View specifications
Compare all 2 references in a table
References of the Rolex Explorer II, with dial, case material, size and production years
ReferenceDialCaseSizeProduced
226570-0001WhiteOystersteel42 mm–
226570-0002BlackOystersteel42 mm–

Explorer II questions

What size is the Rolex Explorer II?

The Rolex Explorer II has a 42 mm case.

What movement does the Rolex Explorer II use?

It uses the Rolex calibre 3285.

What is the Rolex Explorer II case made of?

The case is oystersteel.

Is the Rolex Explorer II water resistant?

It is rated to 100 m.

How many Rolex Explorer II references are there?

Our database lists 2 references.

About the Rolex Explorer II

Rolex introduced the Explorer II in 1971 as a companion to the original Explorer, intended for cave explorers who needed to tell day from night underground. It did this with an additional 24-hour hand read against a fixed 24-hour bezel, and that fixed bezel still separates it from the GMT-Master II, which has a rotating one. The first reference was the 1655, and later generations grew the case, reaching 42mm with reference 216570. Reference 226570, introduced in 2021, kept the 42mm case size, used calibre 3285 with about 70 hours of power reserve, and was offered with a white or black dial.

Sources: Monochrome: History of the Rolex Explorer II, aBlogtoWatch: Rolex Explorer II 42mm 226570 debuts for 2021, Wikipedia: Rolex Explorer, Fratello: Top 5 Rolex Explorer II alternatives in 2026, Fratello: The Explorer II Reference 1655