From the oldest continuously running horological house in Switzerland, Vacheron & Constantin, comes this truly breathtaking and bespoke vintage timepiece, it is a vintage Vacheron & Constantin bumper automatic wristwatch, reference 4466 and the serial number dates this watch from the early 1950s. Also, original box and papers! **Asking Price: $8,200 + Shipping** (Wire, Zelle, PayPal +4% Fees) This particular example is an absolute “must have” for any collector of truly upper vintage timepieces! It is a self-winding watch powered by a Vacheron & Constantin bumper automatic movement high grade caliber 477/1 – The first Vacheron & Constantin automatic movement with sweep second hand, introduced in 1951 and only produced for two years through 1952. This bumper automatic movement uses a rotor which arcs backwards and forwards between the two bumper springs to wind the watch. The rotor is heavy with the purpose of increasing the efficiency of the auto winding mechanism. When the wrist moves the rotor moves too and you can feel and hear the rotor bouncing between the two bumper springs. The movement features 17 jewels, sweep second hand, adjusted to temperatures, 18,800 A/h, Geneve – Swiss made. The Vacheron & Constantin high grade caliber 477/1 comes from the wily documented days of the Jaeger-LeCoultre and Vacheron & Constantin partnership, one of the alliances, the 477/1 is based on the caliber JLC 481. On the other side of the movement, you will find still the original two-tone champagne dial (showing some aged and patina) featuring gold Arabic Numerals and hour markers, bold inner circle with the minute/second track. Gold matching hands and blue steel sweep second hand. The dial is also signed with the Vacheron & Constantin name/logo. Large size, this watch is cased in a 34.6mm round case and split lug design, all in 18K yellow solid gold. The case back is signed: MSS. This watch comes with a vintage black alligator Genuine Leather two-piece strap. The case back is signed "MSS". Also, it comes in the original brown display box and Guarantee Certified and Instructions Manual paper – Be aware that the box is NOT in perfect condition. **Thanks for looking, we are SECOND HAND HOROLOGY! -** Yes, I know, we are new on Reddit, for references feel free to check us on Google, our website, WhatNot or any social media (Facebook, YouTube, Instagram) just typing our name Second Hand Horology.