31 jewels
The 1169.Si is an automatic movement manufactured by Jaquet Droz. It features a silicon balance spring and pallet horns, 31 jewels, and displays hours, minutes, and small seconds. The movement is entirely in-house and remains in production. It powers the Grande Heure Minute Steel.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
31 jewels
Display Type
Analog
FEATURES
Silicon HairspringSmall Seconds
