Model :Polished 18K Rose Gold Plating Polished Stainless Steel Casework , White Dial , Sticks Numerals Hour Markers, Leather strap with Insignia Tang BuckleMovement: Asian 2813 21J Automatic Movement with Calender Complications, Insignia Rotor Functions: Hours, Minutes, Seconds, Fan Date Window a (Set via Crown), Month and Day ( Set Via Recess Pusher on Case Set) ... Day and Date will advance automatically .. Month Need Manual adjustment..nbsp; Dimensions : Dia 42mm x 13mm Thk Material : 1 piece forged case construction, solid 316 stainless steel, 18K Rose Gold Plating..5 Mils Back : Solid Caseback with Detail Engraving on Case Rims Crown : One-piece Pull out crown with o ring Crystal: Sapphire Crystal Water-resistant