The LJP L100 is La Joux-Perret's column-wheel automatic chronograph, designed as a premium alternative to the ETA Valjoux 7750. Tri-compax layout with 30-minute counter at 12, 12-hour counter at 6, and running seconds at 9. Day and date windows at 3 o'clock. The column wheel activation (vs cam-and-lever in 7750) provides smoother pusher feel and is considered more prestigious. Extended 60-hour power reserve compared to typical 48 hours for 7750. 100% dimensionally compatible with ETA 7750 cases. Available in automatic (26 jewels) or manual-wind (24 jewels) versions. Used by Fortis (as WERK 17) and Frédérique Constant (as FC-391).
Movement Type
Automatic
Jewel Count
26 jewels
Power Reserve
60h
Frequency
28,800 vph (8 Hz)
Diameter
30mm
Height
7.9mm
Display Type
Analog
Rotor Type
unidirectional
BRAND
La Joux-PerretTYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2020CALIBER FAMILY
L100COUNTRY
SwitzerlandALSO KNOWN AS
