Explorer, Ref:1016, Serial No.596***, Movement No.D26***, Circa 1960 25-jewel Cal.1560 automatic movement adjusted to temperature and 5 positions, gloss black dial with luminous baton hour markers and Arabic quarters, outer printed five minute divisions, later polished Mercedes hands with luminous inserts, lollipop tipped centre seconds, polished tonneau shaped steel case with screw down back date coded IV 60, screw down Oyster crown, fitted black leather strap with steel buckle, case, dial and movement signed 36mm.