Item Type: Quartz Wristwatches Style: Sport Movement: Quartz Case Material: Carbon Fiber Band Length: 21 Clasp Type: Buckle Water Resistance Depth: 20Bar Feature: Stop Watch,Shock Resistant,Luminous,Chronograph,Complete Calendar,Diver,Water Resistant,Swim,Luminous Hands Dial Diameter: 51 Model Number: XS.3581 XS.3581.BO XS.3581.EY Boxes & Cases Material: PLASTIC Dial Window Material Type: Hardlex Case Shape: Round Band Material Type: PU Band Width: 24 Case Thickness: 16 Brand Name: LUMI NOX bezel: Uni-directional rotating bezel Gender: Men Style: Military Luminous: Constant night visibility for up to25 years Original Country: Made in Switzerland Crown type: Protected crown Caseback: Screwed down caseback Series: Navy Seal Chronograph Type: Chronograph alarm Dial Window Material Type: Hardened mineral crystal (550-650 Vickers)