Seiko Prospex Solar Tuna Collection Street Series - Solar Movement - power reserve of approximately 10 months once fully charged. - Case Diameter: 46.7mm - Case Thickness: 12.6mm - Case Material: Stainless Steel - Prospex Collection - Date Display - Divers Watch - 200 Meters Water resistant - Screw Down Crown - Silicone Strap - Hardlex Glass - Calibre V157