Model : 18K RG Plating Case , Black Dial, RG Stick/Numeral Markers, Leather strap with Insignia BuckleMovement: Lemania Manual Working Chronograph movement Functions: Hours, Minutes, Seconds, Date, Chronograph, Working Moon Phase Top Pusher : Start / Stop Chronograph Bottom Pusher : Reset 8.00 recess pusher : To set Moonphase Dimensions : Dia 42.5mm x 13mm Thk Material : 1 piece forged case construction, solid 316 stainless steel, 18K thick RG Plating...5 mils Back : Display case back Crown : One-piece solid pullout crown with o ring Crystal: Sapphire crystal front and back Water-resistant