Vacheron Constantin caliber 1731QP

Vacheron Constantin caliber 1731QP
Brand:Vacheron Constantin
Reference:1731QP
Movement:Handwound
Display:Analog
Diameter:32.80
Jewels:36
Reserve:65
Frequency:21600
Date:Date, Day, Leap Year, Month, Perpetual Calendar
Hands:Hours, Minutes
Astronomical:Moonphase
Acoustic:Minute Repeater

Description

Hand-wound movement developed and manufactured by Vacheron Constantin, combining minute repeater and perpetual calendar functions measuring just 5.70 mm thick.

All watches using this caliber: