Blancpain Villeret Semainier Grande Date 8 Jours Red Gold Alligator Men's Watch - 6637 3631 55A

Calendar Week. Perfectly adapted to the constraints of modern life, this useful complication indicates the week of the year.

• Water Resistance: 3 bar
• Width Between Horns: 23 mm
• Winding: Automatic, calibre 3738G2
• Power Reserve: 192 hours