Lite Version ....By Alternative Maker....Tribute to 50 Fathoms Limited EditionModel :.....Polished Stainless Steel 316 Casework, Black Limited Edition dial, Superlume ( As Claim by Maker) Bezel Diver Indexes, Arrowed Markers and Needles, Nylon Strap with Insignia Tang Buckle,Unidirectional Rotating Diver Bezel, .Movement:Nickle Plated Miyota 9015 Automatic Movement, 21J, 28800bphFunctions: Hours, Minutes, Seconds, Date Dimensions : Dia 45mm x 16mm Thk Material : 1 piece forged case construction, solid 316F stainless steel Back : Solid or Display case back with Engraving Crown : One-piece screw down crown with o ring Crystal: Double Radius Dome Sapphire crystal, AR Coated , Double Sided Water Resistant