Blancpain Villeret Quantième Annuel GMT

Blancpain's Villeret Quantième Annuel GMT, reference 6670A 3642 55A, comes in a 40 mm red gold case. The case measures 11.1 mm thick, with lugs set 22 mm apart. A sapphire crystal covers the opaline dial. Inside is the self-winding calibre 6054F.4, which runs with 72 hours of power reserve. As a GMT watch, it combines a second time zone with an annual calendar that needs correction only once a year, alongside date and central seconds displays. The dial pairs with an alligator leather strap closed by a pin buckle. Water resistance is rated to 30 metres.