Vacheron Constantin Overseas chronograph

Vacheron Constantin's Overseas chronograph, reference 5520V/210R-B952, measures 42.5 mm across in rose gold. The case stands 12.67 mm thick and pairs with a sapphire crystal over a sunburst blue dial. Inside is the self-winding calibre 5200, carrying the Geneva Seal and offering 52 hours of power reserve. It is a chronograph with a date aperture and small seconds subdial, and the hands and indices carry luminous treatment for low-light legibility. A transparent sapphire caseback shows the movement and its gold oscillating weight. The rose gold bracelet closes with a folding clasp in the same metal, and the strap system can be swapped for leather or rubber. The case carries a 150 metre water resistance rating.