Up for sale vintage 1st Generation Orient Mako Diver’s watch. Rare. 21 jewels automatic Caliber 46943 Serial number: 543763, Made in Japan All original watch head. The watch runs and keeps time. Time & day date can be adjusted through the winder & side pusher. Original Crown with logo locks as it should. Original dial slight sign of ageing. Original hands still glow in the dark. Bezel clicks and turn, with scratches. Case diameter is approximately 42mm excluding crown. Lug width is 22mm. With a black rubber strap, replacement. Please look at the actual pictures.