The Blancpain Bathyscaphe Chronographe Flyback (ref. 5200-0153-B52A) is an automatic dive watch, with a 43.6mm ceramic case, 15.25mm thick, powered by the F385 movement and a 50-hour power reserve. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $22,400.