The Blancpain Fifty Fathoms ref: 5085FA-3630-63B features a 45mm case crafted from rose gold. This model, produced in 2007, is powered by the automatic winding Blancpain caliber F185. It includes a black dial and offers functions such as a chronograph, flyback, and date display. The watch is designed for durability and precision, making it a notable piece in the Fifty Fathoms collection.