Vacheron Constantin Fiftysix Complete Calendar Mens Watch 4000E/000A-B548Founded in Geneva in 1755, the Maison Vacheron Constantin is the world's oldest continuously operating watch manufacturer. With more than 260 years experience, each time piece emboidies the the quest for excellence and the values cherished by Vacheron Constantin. Heir to a model from 1956, this Vacheron Constantin Fiftysix Complete Calendar Mens Watch 4000E/000A-B548 features a 40mm stainless steel case. A blue dial hosts a precision moon phase that is accurate over 122 years and is finished with day, date and month displays. The striking blue and Mississippiensis alligator leather strap gives this timepiece an unmatched modernity. This watch is marked with the Geneva Quality Hallmark.