The Overseas Chronograph watch bearing the Hallmark of Geneva is equipped with Calibre 5200, the new self-winding chronograph movement developed and manufactured by Vacheron Constantin. The result of a five-year development process, this 263-component calibre is fitted with a column wheel coordinating the chronograph start, stop and reset functions, as well as a vertical coupling clutch preventing any jerking of the hand when the chronograph starts. A signature feature of new Vacheron Constantin chronographs, the column wheel is adorned with a screw shaped like the Manufacture’s signature Maltese cross emblem. This movement is equipped with a twin barrel enhancing its torque and its reliability while ensuring over 50 hours of power reserve. Protected from magnetic fields by a soft iron ring, it powers the hours, minutes, seconds, chronograph and date indications. These functions are all displayed on a silver-toned or blue dial adorned with sunburst, snailed and velvety finishes. The gold facetted hands and hour-markers hands are coated with a luminescent material ensuring optimal readability. The Overseas Chronograph comes in a stainless steel or 18K pink gold 42.5 mm-diameter case. Its screwed-down pushpieces, crown and caseback guarantee water-resistance to 150 metres, while its transparent back reveals a 22K gold oscillating weight adorned with a wind rose. The new stainless steel models are each delivered with three interchangeable bracelet/straps: a steel bracelet with an easy-fit system, along with rubber and leather straps. The two latter are fitted with an equally interchangeable stainless steel folding clasp. The pink gold model comes with two straps: one in leather and the other in rubber, both fitted with an interchangeable pink gold folding clasp.