Blancpain Fifty Fathoms Bathyscaphe Chronographe Flyback 5200 1110 B52A | It is the standard accessory on the wrists of the elite, and its nobility goes without saying.

Caliber F385
Automatic
Flyback Chronograph
Date
Silicon balance spring
Small seconds
Unidirectional satin-brushed steel bezel with ceramic insert and Liquidmetal® hour-markers
Secure movement
Case: Steel
Dial: Grey meteor
Sail-canvas strap
Sapphire back
Case Diameter: 43.60mm
Water Resistance: 30bar
Case Thickness: 14.80mm
Between Horns: 23.00mm