Tradition GMT watch in 18-carat gold. Anthracite hand-wound movement. Second time-zone indicator. Day/night indicator. Off-centred local time subdial in silvered gold, hand-engraved on a rose engine. Black off-centred reference time subdial in gold, hand-engraved on a rose engine. Power reserve indicator on the back of the movement. Silicon Breguet balance-spring. Sapphire crystal caseback. Water-resistant to 3 bar (30 m). Diameter: 40 mm.