The Wittnauer Professional 7004A is a nice  alternative to the Longines Valjoux 72 Skin Diver which is much rarer. The watch was completely serviced and case was never polished. The hands have been re-lumed before, for this reason the watch is priced lower than the market.
 
*** The pictures may show the reflexion of the camera lens, black spots mostly ***

Details:

Make: Wittnauer
Model: Chronograph Professional
Reference: 7004A
Year: 1960's
Material: Stainless Steel
Dimensions: 40mm
Crystal: Plexi Glass
Movement: Manual Wind
Bracelet/Strap: Aftermarket
Lug Width: --mm
Box/Papers: No/No