Explorer II 42mm

Rolex's dedicated GMT watch, originally designed for speleologists and polar explorers who lose track of day and night. The 226570 brought the calibre 3285 with a 70-hour power reserve.

• 42mm Oystersteel case, 12.3mm thick
• Calibre 3285: Chronergy escapement, blue Parachrom hairspring, 70-hour power reserve
• Fixed 24-hour bezel for distinguishing day from night
• Sapphire crystal with Cyclops lens, screw-down Twinlock crown
• Water-resistant to 100m
• Superlative Chronometer rated to ±2 seconds per day