Band Material: Stainless Steel, Band Tone: Dark Blue, Band Width: 28.3MM, Band Length: 210MM, Crown Type: Not Applicable, Case Material: Stainless Steel, Case Tone: Dark Blue, Gold, Case Size [mm]: 50.00, Crystal Type: Not Applicable, Dial Material: Not Applicable, Dial Color: Not Applicable .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