Fifty Fathoms Chronographe Flyback

Technical Specifications
Flyback Chronograph: The flyback chronograph, which measures a succession of elapsed times, eliminates many superfluous repetitive operations.
Antimagnetic cage
Unidirectional rotating bezel
Dial Color: Black
Gem-setting: No

Case Specifications
Case Material: Steel
Water Resistance: 30 bar
Case Diameter: 45 mm
Case Thickness: 15.5 mm
Sapphire Back: No
Width Between Horns: 23 mm

Strap Specifications
Strap Type: Steel
Strap Material: Metal
Strap Clasp: Folding clasp

Reference
5085F 1130 71S