The Blancpain Fifty Fathoms ref: 5066F-1140-52B features a stainless steel case with a diameter of 45mm. This model, produced in 2010, is powered by the automatic winding Blancpain caliber 66BF8. It includes functions for date, month, chronograph, flyback, and moonphase, all displayed on a blue dial. The watch combines robust design with complex functionality, making it suitable for both diving and everyday wear.