Vacheron Constantin. Very Elegant and Attractive, Triple Calendar Wristwatch in Yellow Gold, With Claw Lugs and Moon Phase, Reference 4240 Model: Claw Lugs, Triple Calendar Reference: 4240 Case Material: Yellow Gold Bracelet Material: Leather Strap Year: 1946 Movement: Manual Caliber: 485 Case N°: 294198 Movement N°: 457940 Dimensions: 35 mm Signed: Dial, Case and Movement Vacheron Constantin has long been associated with the production of complicated timepieces. While the manufacture made unique calendar wristwatches in the past for their most distinguished clients, the first serially produced calendar wristwatch was unveiled in 1942 with the reference 4240, such as the present lot. This very specimen has a beautifully crafted fluted yellow-gold 35 mm diameter case and claw lugs, preserved in excellent condition, with sharp hallmarks throughout and crisp edges. The day and month are indicated via apertures on the dial and a slim gold hand indicate the time while an arrow indicates the day of the month. The reference was very popular during the 1940s and ’50s that it was relaunched by Vacheron Constantin in 2017. Estimate € 12000 - 24000A 20% import VAT is due on the final price including premium, only if it is delivered within the EU