INVICTA Subaqua Men 51.2mm Stainless Steel Steel Black dial R150 Automatic , Band Material: Stainless Steel, Band Tone: Steel, Band Size [mm]: 28.7, Band Length [mm]: 210, Buckle Type: Fold over safety , Crown Type : Screw Down, Case Material : Stainless Steel, Case Tone : Steel, Case Size (mm) : 51.2, Case Back : Exhibition, Material of Hands : Metal, Color of Hands : Silver,Luminous, Crystal Type : Flame Fusion, Bezel Material : Stainless Steel, Dial Material : Metal,Mother of Pearl,Oyster, Dial Color : Black, Dial Pattern : None .Purchasing these parts and having a non-authorized repair center open your watch voids all manufacturing warranties. Invicta cannot guarantee the quality standards of an altered timepiece, the standard 3-year limited warranty on Invicta timepieces shall be invalid if the timepiece is serviced at any time by an unauthorized repair center. This includes battery replacements, which must be done at an Invicta authorized repair center in order to maintain the eligibility of the warranty. Please follow the link below to learn more about Invicta's warranty.https://cdn.invictawatch.com/www/files/invicta-warranty-2018.pdf