Rolex · Explorer

Rolex Explorer II

Reference 226570 · GMT / travel · 42 mm

24681012141618202214Ø 42 mmLug-to-lug 50.5 mm
Illustration drawn from the specifications: case to scale, colours and style approximate. Not a photo. Photos on the official page

Specifications

Reference
226570
Family
Explorer
Category
GMT / travel
Status
Current
Case material
Oystersteel
Case diameter
42 mm
Case thickness
12.5 mm Third-party
Lug-to-lug
50.5 mm Third-party
Lug width
—
Water resistance
100 m
Bezel
Fixed, 24 h scale
Certifications
Superlative Chronometer
Calibre
3285 Official
Power reserve
about 70 h

Official product page · retrieved October 14, 2026

Does it fit your wrist?

Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.

24681012141618202214Lug-to-lug 50.5 mmFlat top of the wrist 54.1 mm
Top view on a wrist, to scale
Flat top of the wrist 54.1 mmLug-to-lug 50.5 mmCase diameter 42 mm
Side view, across the wrist

Comfortable

Lug-to-lug 50.5 mm on a flat top of 54.1 mm: 93 % of the width.

Lug-to-lug is 75 to 95% of the flat top, the usual comfortable range.

Measurements and sources

Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.

Case thickness

Value Type Source Date
12.5 mm Third-party Bob's Watches Retailer size chart; the page says dimensions were taken with digital calipers on watches in its inventory and from other reputable sources. Listed for ref. 226570. October 14, 2026

Lug-to-lug

Value Type Source Date
50.5 mm Third-party Bob's Watches Retailer size chart; the page says dimensions were taken with digital calipers on watches in its inventory and from other reputable sources. Listed for ref. 226570. October 14, 2026

Lug width

Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.

No source gave this figure yet.

Calibre source

Official Rolex · retrieved October 14, 2026

Other Explorer references

Watch Ø Thickness Lug-to-lug Calibre
Explorer 40 224270 40 mm 11.6 mm 46.5 mm 3230
Explorer 36 124270 36 mm 11.5 mm 44 mm 3230

Other Rolex models

Watch Ø Thickness Lug-to-lug Calibre
GMT-Master II 126710BLNR 40 mm 12 mm 47.6–48 mm 3285
Sky-Dweller 336934 42 mm 14.1 mm 50 mm 9002
Yacht-Master 42 (RLX titanium) 226627 42 mm — — 3235
Sea-Dweller 126600 43 mm 15 mm 50.1–51 mm⚠ 3235
Submariner 124060 41 mm 12.2–12.5 mm⚠ 47.6–48.2 mm 3230
Submariner Date 126610LN 41 mm 12.2–12.5 mm⚠ 47.6–48.2 mm 3235
Show 13 more
Watch Ø Thickness Lug-to-lug Calibre
Air-King 126900 40 mm 11.6 mm 48 mm 3230
Deepsea 136660 44 mm 17.7 mm 51.5 mm 3235
Yacht-Master 40 126622 40 mm 11.7 mm 47–47.3 mm 3235
Cosmograph Daytona 126500LN 40 mm 11.9 mm 46.5 mm 4131
Deepsea Challenge 126067 50 mm 23 mm 61 mm 3230
Oyster Perpetual 41 134300 41 mm — — 3230
Datejust 41 126334 41 mm 11.9 mm 46.5–47.5 mm⚠ 3235
Land-Dweller 40 127334 40 mm 9.7 mm 46.5 mm 7135
Datejust 36 126200 36 mm 11.5 mm 44 mm 3235
Oyster Perpetual 31 277200 31 mm — — 2232
Oyster Perpetual 34 124200 34 mm — — 2232
Oyster Perpetual 36 126000 36 mm 11.6 mm 44 mm 3230
Datejust 36 (fluted bezel) 126234 36 mm 11.5 mm 44 mm 3235

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