Movement: Automatic Engine: Seiko 21 Jewels Automatic winding Cal. 7S26 Power Reserve: Up to 43 hours FEATURES Water Resistance: 30 meters / 99 feet Calendar: Date and Day of the Week display at the 3 o'clock position Functions: Date, Hour, Minute, Second CASE Case Size: 37 mm Case Thickness: 11 mm Case Material: Stainless Steel Case Shape: Round DIAL Dial Type: Analog Dial Color: Black, Red Glass: Hardlex Crystal Second Markers: Minute Markers around the outer rim Dial Markers: Index BAND Band Type: Bracelet Band Material: Stainless Steel Band Color: Silver Band Width: 18 mm