Type 20 flyback chronograph in steel. Self-winding movement with date and subdial for the seconds. Balance spring in silicon. 30-minute counter. Bidirectional 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: Steel
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: 7281
Winding: Self-winding
Lines: 14
Jewels: 34
Frequency: 5
Balance-wheel: Breguet
Escapement: Spiral flat and lever silicon
Balance-spring: flat, silicon
Oscillating weight: 18 Carats
Number of components: 339
REF: 2057ST/92/3WU
