Brand: Seiko Series: Prospex Model: SRPH11K1 Gender: Men's Movement: Automatic Engine: Seiko 23 Jewels Automatic winding Cal. 4R35 Power Reserve: Up to 41 hours Vibrations: 21,600 bph FEATURES Water Resistance: 200 meters / 660 feet Calendar: Date display at the 3 o'clock position Functions: Date, Hour, Minute, Second Accuracy: +45/-35 sec per day CASE Case Size: 43.8 mm Case Thickness: 13.4 mm Case Material: Stainless Steel (Hard Coating) Case Shape: Round Bezel Color: Black Unidirectional rotating bezel DIAL Dial Type: Analog Dial Color: Black Glass: Hardlex crystal Dial Markers: Baton indexes Second Markers: Minute Markers around the outer rim Luminiscence: Hands, Indexes and Bezel BAND Band Type: Buckle Band Material: Silicone Band Color: Black Clasp: Tang