Villeret Chronographe Flyback Pulsomètre

Technical Specifications
Flyback Chronograph: The flyback chronograph, which measures a succession of elapsed times, eliminates many superfluous repetitive operations.
Pulsometer
Dial Color: White grand feu enamel
Gem-setting: No

Case Specifications
Case Material: Red Gold
Water Resistance: 3 bar
Case Diameter: 43.7 mm
Case Thickness: 13.4 mm
Sapphire Back: Yes
Width Between Horns: 23 mm

Strap Specifications
Strap Type: Alligator leather
Strap Material: Leather
Strap Clasp: Folding clasp

Reference
6680F 3631 55B