Seiko Prospex Speedtimer Limited Edition Chronograph Stainless Steel Black Dial Solar SFJ007P1 100M Men's Watch valentines day gift 4mm (approximate) Lug Width 18mm Whether paired with a 4mm (approximate) Lug Width 18mm Lugs Count 4 Band Width 18mm Band Material Resin Band Type Two Piece Strap Band Color Black with Red Accents Clasp Type Buckle Caseback Screw in Crown Type Push Button Crystal Mineral Dial Color Black Digital Functions Stopwatch (1 100 sec) Brand: Armand Nicolet Description: Features: 316L Stainless Steel Case Calf Leather Strap Automatic Movement Caliber: AN500 Sapphire Crystal With Lens On The Date Burgundy Dial Analog Display Chronograph Function Date Display Power Reserve Upto 46 Hours Luminous Hands And Markers Unidirectional Rotating Bezel With Acrylic Insert Screw Down Crown Solid Case Back Buckle Clasp 100m Water Resistance Approximate Case Diameter: 38mm Approximate Case Thickness: 14 Screw down case back for enhanced water resistance and explorers on their most challenging expeditions