Global Perspective The GMT-Master was designed for those who navigate across time zones, offering a practical solution for international travel. Its enduring design and technical precision have made it a trusted companion for explorers and professionals alike. Modern Functionality This 40mm Oystersteel model features a black dial and a rotatable 24-hour bezel. The Oyster bracelet with Easylink clasp ensures comfort, while the Calibre 3285 provides a power reserve of approximately 70 hours.