Reference 6782 is an exceedingly rare reference and it is believed that there exist only two examples in white gold anywhere in the world. Vacheron Constantin’s interpretation of the “Thunderbird” offered here for sale is in exquisite condition still retaining all of its original factory finishes. The circular screw down case is unpolished, the lugs are beautifully displaying original finishes and clear defined lines. The silver “Star Burst” dial is clean and in all original condition and the bezel is very crisp, still retaining the red enamel triangle at 12 o’clock. This Vacheron Constantin “Turn-O-Graph” ticks every box for the demanding collector.