Vacheron Constantin Traditionnelle complete calendar openface

The Vacheron Constantin Traditionnelle complete calendar openface, reference 4020T/000G-B655, is a 41 mm white gold watch with a case measuring 11.05 mm thick. The dial is grey and sits under a sapphire crystal, with the openworked construction revealing the movement beneath. Inside is the self-winding calibre 2460 QCL/2, carrying the Hallmark of Geneva and offering 40 hours of power reserve. The complete calendar shows day, date and month, paired with a precision moon phase display. A display back lets the finishing of the movement be viewed from the reverse. The watch is fitted to a grey alligator leather strap closed by a white gold pin buckle. Water resistance is rated to 30 metres.