Longines Flyback  - ref 5967 31 35 - 30CH 18 jewel Manual wind Movement with register, telemeter, and tachometer / Chronograph, 

circa 1958

38mm diameter

~15mm thickness

Snap-on back

Movement number shows 1958 estimated date- Longines confirmed that the "...serial # identifies a wrist-chronograph in 18ct rose gold bearing the reference 5967. It is fitted with a Longines mechanical self-winding movement, caliber 30CH. It was invoiced on 17 December 1958 to the company Ostersetzer, which was at that time our agent for Italy."

Freshly serviced week of 02/13/23 - everything operating as it should, including the chrono. 

Great minor Patina, has looked to have had a redial. Signs of polishing. Keeps time and minimal resistance when setting time. 

No boxes or papers, is a family heirloom. Do not have original strap/clasp. Will include new black cardovan band with sale. 

More photos available upon request.

Happy to meet with potential buyers locally at local watch shop. 

Please message me regarding any international sales.