Montblanc Carbon Collection Key Ring Mb35830 Sapphire Glass the strap of the watch the strap of the watch amazingly serves as a stylish and fitting bracelet having 3 piece sliding clasp for the pleasing fit Case Thickness 12 mm Band Material Stainless Steel Band Width 14 mm Band Width Unit Of Measure mm Water Resistant Depth 50 Meters Battery Composition Silver Oxide Bezel Material Stainless Steel Calendar Other Bezel Function Other Clasp Type Bracelet Butterfly Deployant Water Resistance Depth Unit of Measure Meters Movement Automatic Case Material Steel Case Diameter 34 mm Case Shape Round Display Type Analog Band Color Rose Gold Dial Color Blue Occasion Casual Band Style Band Warranty 2 Years Gender Women Hook Closure Montblanc Carbon Collection Keychain in Polished Steel with Blue Carbon Inserts