Oris Explorer Black Face Stainless Steel Vintage Mens Wriswatch Crown Wind & Set 1960's

Oris Explorer Black Face Stainless Steel Vintage Mens Wriswatch Crown Wind & Set 1960's. Crown wind and set waterproof anti-shock movement with Arabic numerals at the quadrants and sweep second hand. Please view images.The watch is not running and seems to have either a detached or broken mainspring as there is no spring tension pressure but when the hands are advanced the watch will momentarily run. Scratches on crystal with a few bumps and knocks here annd there on case, service required. All images are of the actual item.