Blancpain Bathyscaphe Quantième Complet Phases de Lune

Blancpain's Bathyscaphe Quantième Complet Phases de Lune, reference 5054 3640 NAOA, is a 43 mm case in red gold. The case measures 13.4 mm thick and carries a lug width of 23 mm. A sapphire crystal covers the sunburst blue dial, graduated in colour toward the edge. Inside is the self-winding calibre 6654.P.4, with 72 hours of power reserve. The watch combines a full calendar, showing date, weekday and month, with a moon phase display and central seconds. It is fitted to a NATO strap in textile, closed with a pin buckle. Blancpain rates the case to 300 metres.