Brand: BVLGARI Reference Number: 103126 Collection: Octo Finissimo Extra Thin Case Material: Black Ceramic Movement: Manual Winding Movement Case shape: Octagonal Bracelet: Black Ceramic Strap Crystal: Scratch Resistant Sapphire Bezel: Fixed Dial: Skeleton Case Diameter: 40mm Case Thickness: 5.37mm Water Resistance: 30 meter / 100 feet Power Reserve: 65 Hours