1960's Oris Cal 440 Manual Winding Tank Watch

Just Serviced, and as near to perfect as it could be, this is the earlier version of the 440 movement which morphed to 17 jewels in it's final years, the 70's style case leaves me thinking this watch is circu:1968.
The 28mmx36mm case is as perfect as could be, the silver woven effect dial is perfect, with black Art Deco stylised Arabic numerals in black - New high end strap.