Reference: 4500V/110A-B483 Shape: Round Diameter (mm): 41.00 Thickness (mm): 11.00 Material of the case: stainless steel Material of the bezel: stainless steel Material of the crown: stainless steel Material of the dial: metal Back: Transparent caseback, sapphire glass Water-resistance (bar): 15 Number of delivered straps: 3 Watch straps material: stainless steel, alligator Mississippiensis, Rubber Type of buckle: Deployant buckle Buckle material: stainless steel Specificity: Anti-magnetic protection to 25,000 A/m Reference: 5100 Energy: Automatic Thickness (mm): 4.70 Diameter (mm): 30.60 (13¼''') Number of parts: 172 Number of jewels: 37 Frequency: 4 Hz ( 28800 v.p.h ) Power-reserve (hours): 60 approx. Indication: hours, minutes, date in aperture, center seconds Certification: Hallmark of Geneva