A more complicated expression of the Fifty Fathoms, this reference brings Blancpain's dive watch language into a broader collector sphere with a flyback chronograph, calendar, and moonphase. The 45mm stainless steel case and blue dial give it a decidedly modern, purposeful look, with enough visual depth to suit the model's substantial architecture. Its automatic movement underpins the watch's more ambitious brief with everyday practicality. On the wrist, it wears with the broad stance and thickness expected of a 17.2mm Fifty Fathoms.