Officine Panerai. a stainless steel automatic calendar diver's wristwatch, luminor Submersible, Ref:OP6561, No:E0753/2500, Case No.BB1052728, Cushion shaped case with circular black matte dial, luminous dot and Arabic hour markers, pierced luminous hands, magnified date aperture, subsidiary dial for running seconds, brushed and polished case with screw down engraved case back, uni-rotating bezel with partial minute marker and luminous dot, winding Crown with patented security lever, fitted rubber strap with stainless steel Panerai deployant clasp, case, dial and movement signed. Original box and unsigned guarantee card. 44 mm