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Longines Caliber 12 68z

Longines Caliber 12.68Z

Longines Caliber 12 68z

Brand Longines
Caliber Number 12.68Z
Movement Type Manual wind, mechanical
Diameter 12”’ (27mm)
Thickness 4.25mm
Jewels 17
Lift Angle 44 degrees (needs confirmed)
Power Reserve ~41 hours
Vibrations Per Hour 18,000 bph
Balance Staff U860
Hairspring Flat
Anti-Shock Incabloc
Features Hours, minutes, small seconds at 6:00
Country of Manufacture Switzerland
Production Years 1940s – 1950s
Known Models (Add yours in the comments below)

The Longines caliber 12.68Z is a vintage mechanical movement. This caliber was produced in the 1940s and 1950s.

The movement featured here was found in a vintage Longines dress watch here. This is what wahawatches said about it:

“The movement is the Longines 12.68z with serial number 9.49xxxx. On April 28th, 1956, it was sold to Bessire which was the Belgian agent for Longines at the time.

It didn’t have any problems and it kept good time. This is just a regular service to keep it in pristine condition. In the case of Longines, it’s extra important because parts are hard to find and they’re expensive.”

About Longines

Longines was founded in 1832 in Saint-Imier, Switzerland. This brand is part of the Swatch Group watch conglomerate. At one point in time, Longines was manufacturing their own movements. Today, they are primarily using movements produced by the Swatch Group’s ETA factory.

Please share your experiences and thoughts about the Longines caliber 12.68Z in the comments section below…

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Service: Longines Dress Watch with Longines 12.68Z Movement - WahaWatches

[…] movement is the Longines 12.68Z with serial number 9.49xxxx. On April 28th, 1956, Longines sold it to Bessire which was their […]


How is the timekeeping and is there a second stop when you pull the crown?


How is the timekeeping


I managed to get it to +4 seconds a day.


Are 620 € a fair price for the watch in good conditions?


When you pull the crown will the seconds stop?


Nope, it doesn’t have hacking.