Seiko General x Solar ft. Ultra Slim Men Formal Round Water Resistant Watch SUP855P1 SUP855 SUP-855 SUP-855P1 Discover the Seiko ultra-slim solar watch, featuring a sophisticated 6.2mm stainless steel case and premium calfskin leather strap. Powered by advanced V115 solar technology with 12-month power reserve, 15 sec/month accuracy, and water resistance for elegant, maintenance-free timekeeping. Caliber Number / Movement V115 (solar powered) Power Reserve / Accuracy Approximately 12 months when fully charged (+/-15 seconds per month) Crystal Hardlex crystal Luminous Nil Case / Band Material Stainless steel case with leather (calfskin) band Water Resistance Water resistant Case Size Thickness: 6.2 mm Diameter: 37.8 mm Length: 44.3 mm Lug width: 20.0 mm Other Specifications Seiko General x Solar ft. Ultra Slim Overcharge prevention function Regular timekeeping (analog display)