The Blancpain Bathyscaphe Quantième Complet Phases de Lune (ref. 5054-0153-B52A) is an automatic dive watch, with a 43.6mm ceramic case, 13.4mm thick, powered by the 6654 movement and a 72-hour power reserve. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $22,400.