SEIKO Superior 50M Automatic SRP007K1Caliber: 4R16 Automatic Movement, 22 Jewels Made in Japan A window at the 3 o'clock hour reveals the automatic day calendar.Metal: BlackTiCN plating Solid Stainless Steel Size: 45mm with crown Band: BlackTiCN plating Stainless Steel braceletWater resistance to 50 meters/ 5 barsGlass: Top Sapphire crystalLuminous handsDial: Black One year International warranty