Specifications
Manual Movements
Hallmark of Geneva certified
Caliber 1731
A tribute to Jean-Marc Vacheron, founder of the Manufacture in 1731, minute repeater Calibre 1731 with its impressive 65-hour power reserve is a record 3.90 mm thin. The challenges involved in such extreme slenderness are compounded by the ingenuity of a silent flying strike governor that ensures the regular rhythm of the hammers in striking the gongs. It combines purity, regularity of sound with the excellence of hand-crafted decoration and finishing right the way through to hidden elements.
Caliber 1731
- Reference: 1731
- Energy: Manual-winding
- Thickness (mm): 3.90
- Diameter (mm): 32.80 (14¼''')
- Number of parts: 265
- Number of jewels: 36
- Frequency: 3 Hz ( 21600 v.p.h )
- Power-reserve (hours): 65 approx.
- Indication: hours, minutes, small seconds, minute repeater
- Certification: Hallmark of Geneva
Models fitted with this caliber
Vacheron Constantin and the Hallmark of Geneva
The Hallmark of Geneva is a standard of excellence stemming from the tradition of Haute Horlogerie. It addresses the high-end Geneva watch brands.
It is the guarantee of origin (mechanical movement, assembly and regulation in the Canton of Geneva), quality of workmanship, durability and exceptional savoir-faire.
For over a century, the Hallmark of Geneva has been a reference for quality that is synonymous with the excellence of a traditional savoir-faire.
