Blancpain Fifty Fathoms Bathyscaphe Quantieme Annuel Steel Men's Watch - 5071 1110 71S

• Collection: Fifty Fathoms
• Case Material: Steel
• Case Diameter: 43 mm
• Case Thickness: 13.1 mm
• Width Between Horns: 23 mm
• Bezel: Unidirectional sapphire bezel
• Dial: Black
• Strap: Satin-brushed steel
• Winding: Automatic; Calibre 6054.P.4
• Power Reserve: 72 hours
• Water Resistance: 30 bar

Annual calendar. This very useful complication takes account of the number of days in the month. It is capable of recognizing a 30-day month without manual intervention.