| Bezel | Fixed, 24-hour graduated |
| Bracelet | Oyster, three-piece solid links |
| Bracelet Material | Oystersteel |
| Calibre | 3285, Manufacture Rolex |
| Certification | Superlative Chronometer (COSC + Rolex certification after casing) |
| Clasp | Folding Oysterclasp with Easylink 5 mm comfort extension link |
| CollectionName | Explorer |
| Crystal | Scratch-resistant sapphire, Cyclops lens over the date |
| Dial | Black |
| Diameter | 42 mm |
| Material | Oystersteel |
| Model Case | Oyster, 42 mm, Oystersteel |
| Power Reserve | Approximately 70 hours |
| Reference / Code | 226570 |
| Water Resistance | Waterproof to 100 metres / 330 feet |
| Winding Crown | Screw-down, Twinlock double waterproofness system |
24-Hour Bezel
The Explorer II is equipped with an additional 24-hour display; a dedicated hand circles the dial in 24 hours rather than the usual 12, pointing to a fixed bezel with 24 hour graduations. This function enables the wearer to distinguish the hours of the day from the hours of the night, an essential feature for those who venture into environments where darkness reigns supreme – such as in the depths of caves, or where the sun never sets – like the polar regions in summer.
Black dial
The Explorer II features a date display, an additional orange 24-hour hand and a fixed bezel with 24-hour graduations, enabling day to be distinguished from night. It became the watch of choice for speleologists, volcanologists and polar explorers. Its hour markers and hands feature a highly-legible Chromalight display with long-lasting blue luminescence.
