Blancpain Villeret Quantième Annuel GMT

The Blancpain Villeret Quantième Annuel GMT, reference 6670A 3642 55B, is a GMT watch with a 40 mm red gold case. The case measures 11.1 mm thick and takes a strap of 22 mm at the lugs. A sapphire crystal covers the opaline dial. Inside is the self-winding calibre 6054F.4, which runs with a 72 hour power reserve and combines an annual calendar with a second time zone display. Central seconds and a date indication complete the layout. The case closes on an alligator leather strap with a folding clasp. Blancpain rates the case to 30 metres.