Rolex Explorer II ref. 216570 (2015) is a modern tool watch built for adventure. Its 42mm Oystersteel case combines rugged durability with a clean, contemporary profile. The crisp white “Polar” dial features bold black hour markers and hands, paired with the signature orange 24-hour hand and fixed bezel for tracking day and night or multiple time zones. Powered by the Rolex Caliber 3187 automatic movement, it offers a 48-hour power reserve and 100 meters of water resistance. A solid Oystersteel bracelet with Oysterlock clasp completes the package, delivering durability, comfort, and performance. This Explorer II blends precision engineering with heritage, making it one of the most capable and desirable modern Rolex tool watches.