70's vintage watch mens Dinamo chronograph valjoux 7734 gold pl serviced rare

Case:
o   Gold plated with case in stainless steel with marks and scratches all over,  ref. 664151
o    Fine condition with strong geometry
o   37.5mm without crown / 43mm lug to lug  / 13mm tickness /  18mm lug width
 

Movement:
o   Mechanical manual wind chronograph valjoux 7734 -  recently serviced ...
(movement clean) - photo of timegrapher
 
Dial & Hands:
    o   Untouched in great condition

Bracelet Material: 
  o   New 18mm dark brown leather with generic golden buckle 
 
Conclusion / Condition: 
A rare vintage piece in great working condition...

please see photos as they are part of the description.
No box or pappers, no water proof test, sold as is, any question feel free for ask...