When Rolex enlarged the Explorer to 40mm with the 224270, it marked the first significant case size increase for the model since the 1960s. The additional millimetre over the previous 39mm 214270 may sound marginal on paper, but the redesigned case architecture — thinner bezel, wider dial aperture, and reshaped lugs — makes the new reference wear noticeably more modern. The Explorer remains one of Rolex’s purest tool watches: no date, no complications, just time told clearly in any conditions.
Key Specifications
| Specification | Detail |
|---|---|
| Reference | 224270 |
| Case Size | 40mm |
| Case Material | Oystersteel |
| Bezel | Smooth, Oystersteel |
| Dial | Black with 3-6-9 Chromalight numerals |
| Crystal | Sapphire |
| Movement | Automatic, time-only |
| Water Resistance | 30m |
| Bracelet | Oyster, three-piece links |
| Clasp | Oysterlock with Easylink |
| Functions | Hours, minutes, seconds |
The 224270 Up Close: Case, Dial and Bracelet
The black dial is defined by three oversized Arabic numerals at 3, 6, and 9 — the Explorer’s signature since 1953. Filled with Chromalight luminescent material, these numerals glow blue in the dark and provide instant orientation even at a glance. Stick markers at the remaining positions and a prominent Mercedes hour hand complete the legibility equation. The matte black surface provides a no-nonsense backdrop, free of date windows or decorative finishing.
The smooth Oystersteel bezel and straightforward Oyster bracelet reinforce the Explorer’s tool-watch philosophy: everything present serves a functional purpose. The Easylink extension in the clasp allows 5mm of on-the-fly bracelet adjustment. See the complete tool-watch range in the Explorer collection.
Movement Options: Swiss vs Japanese
Two movement tiers let you select based on mechanical preference:
- Swiss automatic — higher beat rate with smooth seconds sweep, longer power reserve, and construction inspired by the caliber 3230. The refined option for those seeking the closest horological experience.
- Japanese automatic — Miyota-based movement with consistent accuracy, reliable longevity, and straightforward servicing worldwide. An excellent practical choice for everyday exploration.
Both movements feature hacking seconds for precise time synchronisation.
Shipping, Warranty and Returns
Every Explorer ships in discreet packaging with complete tracking from origin to destination. Shipping durations vary — our shipping policy provides region-specific estimates. The watch is covered by our movement warranty from the date of delivery. Need to make a return? Our return and exchange policy walks you through each step.















1 review for Replica Rolex Explorer 40 mm Black Dial 224270