Adventurers Companion The Explorer II is a watch built for endurance, designed for those who venture into the most challenging environments. This 40mm model reflects that spirit, offering clarity and resilience in equal measure. Its Oystersteel case and black dial provide functionality for adventurers and professionals alike. Technical Assurance Powered by the calibre 3185 with a 48-hour power reserve, this reference features a fixed 24-hour bezel and Oyster bracelet with Oysterlock clasp. The sapphire crystal reinforces its durability.