Blancpain Villeret Quantième Perpétuel Phases de Lune

Blancpain's Villeret Quantième Perpétuel Phases de Lune, reference 6656 1127 55B, has a 40.3 mm steel case. The case measures 10.7 mm thick, with 22 mm lugs sized to carry the strap. A sapphire crystal sits over the white dial. Inside is the self-winding calibre 5954.4, which runs with 72 hours of power reserve. The watch pairs a perpetual calendar with a moon phase display, and adds a date indication along with central seconds. The perpetual calendar tracks the length of the months without correction until the next century turn. An alligator leather strap closes on a folding clasp. Blancpain rates the case to 30 metres of water resistance.