Type XX flyback chronograph in steel. Self-winding movement with date and subdial for the seconds. Balance spring in silicon. 15-minute and 12-hour counters. Bidirectional graduated rotating bezel. Luminescent hands and hour-markers. Sapphire caseback. Water-resistant to 10 bar (100m). Diameter: 42mm. Available with two interchangeable straps: one in calfskin and another in NATO fabric. A rapid interchange system allows the wearer to easily and independently switch from one strap to another. CASE Metal: 18K Rose Gold Skeleton: No Sapphire Caseback: Yes Case Shape: Round Case Width: 42 mm Case Thickness: 14.1 mm Water-resistant: 10 Bar (100 m) MOVEMENT Caliber: 728 Winding: Bidirectional automatic Jewels: 39 Frequency: 5 Balance-wheel: Breguet Escapement: Flat silicon spiral and inverted silicon anchor Balance-spring: flat, silicon Number of components: 350 REF: 2067RK/Y9/9WU