Go slim, clean and bold with a mid-sized black resin band GMS2100B-8A in a metal-clad octagonal take on the original iconic design. Forged in stainless steel with rounded hairline finish, the strong dark gray bezel says super style all the way. Only the lettering at the top and bottom are engraved, for a simple, one-piece design. The dial, flattened for slimness, is treated with ion plating color and mirrored indexes to add shimmery depth. Approx. battery life: 3 years on CR1025 Size of case : 45.9×40.4×11mm Total weight : 55g Case / bezel material: Resin / Stainless steel Resin Band Neobrite Shock Resistant Mineral Glass Dark gray ion plated bezel