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Buren Grand Prix caliber 410

Buren Caliber 410

Buren Grand Prix caliber 410

Brand Buren
Caliber Number 410
Movement Type Manual wind, mechanical
Diameter 10.5”’ (23.3mm)
Height 4mm
Jewels 15
Power Reserve 38 hours
Vibrations Per Hour 18,000 bph
Balance Staff U1607
Hairspring ZFL1348
Hands 1.35 / 0.70 / 0.15
Features Hours, minutes, small seconds
Country of Manufacture Switzerland
Production Years 1940s
Known Models Grand Prix

The Buren caliber 410 was produced in the 1940s and found in a Buren Grand Prix watch. There are two variations of this movement: the 410 has a small second sundial and the 411 which has a sweep second. The example shows above is a caliber 410.

Buren was founded in the Swiss town of Büren an der Aare in 1898, but it wasn’t until around 1916 that the company started to call itself Buren Watch Co. Until this time, they mostly produced pocket watches and table clocks. They were the inventors of the micro-rotor and a list of other calibers. Then, in 1966, history happened. Buren was sold to the Hamilton Watch company and began taking over US production of Hamilton watches. This continued until 1972 when Buren was sold off entirely.

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