Blancpain Fifty Fathoms Bathyscaphe Quantieme Annuel Steel Black NATO Men's Watch - 5071 1110 NABA

• Case Material: Steel
• Case Diameter: 43 mm
• Case Thickness: 13.1 mm
• Bezel: Unidirectional sapphire
• Water Resistance: 30 bar
• Caliber: 6054.P.4
• Specificities: Annual Calendar
• Strap: Black NATO fabric with pin buckle
• Power Reserve: 72 hours

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.