SEIKO 5 Sports Mid-Size Collection 100M Automatic SRP193K1Caliber: NEW 4R36 Automatic winding type with manual winding mechanism24 Jewels Made in Japan A window at the 3 o'clock hour reveals the automatic day calendar.Metal: Black IP plated Stainless steel / unidirectional rotating bezel Size: 40mm with crown Band: Black IP plated Stainless steel braceletWater resistance: 100 meters/ 10 bars/ 330 feetGlass: Hardlex crystalDial: BlackOne year International warranty