Blancpain Fifty Fathoms Chronographe Flyback 5085F-1130-52

The Blancpain Fifty Fathoms Flyback Chronograph, ref. 5085F-1130-52, is a significant model that successfully merges the robust, professional-grade specifications of the Fifty Fathoms diver with the complex functionality of a flyback chronograph. Launched in 2007 alongside the revival of the main collection, its historical context is that of a “super diver,” a luxury sports watch equipped with advanced complications. The “F” in the reference number denotes its key feature: the flyback function, which allows the chronograph to be reset and restarted with a single push of the 4 o’clock pusher, a complication with military and aviation origins. The watch features a 45mm polished stainless steel case, the signature sapphire-coated unidirectional bezel, and a highly legible black dial with a 3-6-9 chronograph sub-dial layout. A date window is positioned between 4 and 5 o’clock. The movement is the sophisticated Caliber F185, based on a Frédéric Piguet 1185 ebauche, which is a vertical-clutch column-wheel chronograph movement highly regarded for its smooth operation. To ensure dive-watch integrity, the chronograph pushers are equipped with a locking system to prevent accidental operation underwater, maintaining the 300-meter water resistance rating. This reference is typically sold on a durable black sailcloth strap, underscoring its dual identity as both a technical instrument and a luxury sports watch.