Base Metal case with Black leather calfskin bracelet. Base Metal bezel with Analog Blue, embossed inner, matt outer dial. Quartz movement with Mineral crystal and Push/pull crown. Screw-down case back. 45mm Case Diameter. 10.5mm Case Thickness with 9 inches band length and 23 mm band width. Buckle Clasp. Water Resistant: 3 ATM/30 meters/99 feet Function: Hour, Minute, Second August Steiner Blue Mens Watch AS8117BU