Dual Time Mastery The GMT-Master II is designed for those who navigate across time zones. Originally developed for airline pilots, it combines robust construction with a practical 24-hour display, making it a trusted companion for global travellers. The Traveller's Companion This reference 116713LN features a 40mm case in Oystersteel and yellow gold, black dial, and a rotatable 24-hour bezel. Powered by the calibre 3186 automatic movement, it offers a 48-hour power reserve and independent hour hand adjustment. The Oyster bracelet includes an Easylink extension and Oysterlock clasp, delivering both functionality and bold styling.