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The Blancpain Bathyscaphe Quantième Complet Phases de Lune (ref. 5054-0130-01S) 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 $31,700.