Blancpain Fifty Fathoms Automatique 5010-1130-B64B 42.3 mm Steel Black Dial Watch for Men

Launched in 1953, the Fifty Fathoms is widely regarded as the first modern divers' watch, built for the French Navy's combat swimmers. The Fifty Fathoms Automatique carries that heritage in a 42.3 mm stainless steel case, water-resistant to 300 metres, with a unidirectional rotating bezel for timing dives.

The sunburst black dial with large luminescent markers stays legible in low light, and the black tropic-style rubber strap is made for the water. Inside is Blancpain's in-house calibre 1315, with three barrels delivering a 120-hour power reserve and a silicon balance spring, visible through the sapphire caseback.

Technical specifications

• Brand: Blancpain
• Collection: Fifty Fathoms
• Model: Fifty Fathoms Automatique
• Reference: 5010-1130-B64B
• Case: Stainless steel, 42.3 mm diameter, 14.3 mm thick
• Lug width: 21.5 mm
• Crystal & caseback: Sapphire crystal, sapphire display caseback
• Water resistance: 30 bar (300 m)
• Dial: Sunburst black with luminescent hour markers and date window
• Functions: Hours, Minutes, Seconds, Date, Unidirectional rotating bezel
• Movement: Blancpain calibre 1315, in-house automatic (self-winding)
• Power reserve: 120 hours
• Frequency: 4 Hz (28,800 vph)
• Movement details: 35 jewels, 227 components, 5.65 mm thick, silicon balance spring, secured movement
• Strap: Black tropic-style rubber, interchangeable
• Clasp: Folding clasp
• Warranty: 5-year Blancpain international warranty