SEIKO 5 Automatic SNKK22K1 - 21 Rubbers Gold Steel Case & Bracelet Automatic Similar Cosa Black Display Folders and Indexes calendar day of the month and week matt gold bracelet with polished details Polished edge Calibre 7S26 Hardlex Crystal 21 rubies WR 30m Approximate diameter of box 37 mm Approximate thickness of box 11 mm Approximate weight 113g