Blancpain Bathyscaphe Quantième Complet Phases de Lune

Blancpain's Bathyscaphe Quantième Complet Phases de Lune, reference 5054 3640 O52A, comes in a 43 mm red gold case. The case measures 13.4 mm thick, with a lug width of 23 mm. The sunburst blue dial sits under a sapphire crystal and shows a graduated colour that shifts across its surface. Inside is the self-winding calibre 6654.P.4, with 72 hours of power reserve. The watch combines a full calendar, with date, weekday and month displays, alongside a moon phase indication and central seconds. A sail-canvas strap closes with a pin buckle. Blancpain rates the case to 300 metres.