La Joux-Perret caliber 8120

Ref. 8120

The La Joux-Perret caliber 8120 is an automatic movement with a 42-hour power reserve, beats at 28,800 vph, and carries 25 jewels.

The La Joux-Perret 8120 is based on the 7750. It is modified to have subdials at 3, 6 and 9 and does away with the day window found in its base movement.