Vacheron Constantin Overseas chronograph

Vacheron Constantin's Overseas chronograph, reference 5520V/210R-B966, is a chronograph in an 18K rose gold case measuring 42.5 mm across and 12.67 mm thick. The green dial sits under a sapphire crystal, with hour markers and hands highlighted for legibility in low light. Inside is the self-winding calibre 5200, bearing the Hallmark of Geneva, with a 52-hour power reserve. The chronograph combines 30-minute and 12-hour counters with small seconds and a date aperture between 4 and 5 o'clock. A 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 case interchanges with leather or rubber straps. Vacheron Constantin rates the watch to 150 metres of water resistance.