A more complicated expression of the Fifty Fathoms Bathyscaphe, this Blancpain brings the line's restrained dive-watch design into a distinctly dressier register. The 43mm rose gold case and blue dial give it a richer, more refined presence while keeping the look crisp and purposeful. Its automatic movement pairs a moonphase display with date and annual calendar indications, adding real mechanical substance. At 13.4mm thick, it wears with balanced proportions for a watch of this complexity.