1 year official warranty Automatic Mechanical Movement Caliber 8210 Stainless Steel Case Stainless Steel Bracelet Green Dial Luminous Hands and Indexes Date Display at 3 o’clock Position with Magnifier Sapphire Crystal See-through Screw Case Back Screw Down Crown at 4 o’clock Position Fixed Stainless Steel Bezel Fold Over Clasp with Push Button Safety 42 Hours Power Reserve 50M Water Resistant Diameter 40 mm x Thickness 11.7 mm Lug to lug 45 mm 138 g