Model/Reference: GMT Perpetual, 42 mm, black dial – 320-60/62
Material: 18 ct white gold
Dial: black dial, wave pattern
Strap: alligator
Movement: mechanical self-winding movement, Chronometer COSC
Complication: Perpetual Calendar adjustable over single crow. 2nd time zone on main dial with patented quickset. Permanent home time indicated by 3rd hand. Big Date in double window.