Blancpain Fifty Fathoms Chronographe Flyback Steel 45mm Blue Dial 5085FB 1140 52B - BRAND NEW

The Blancpain Fifty Fathoms is widely recognized as the world's first modern dive watch, introduced in 1953 and developed in close collaboration with the French Navy's combat divers. Over seven decades, the collection has grown from a pure tool watch into a family that encompasses some of haute horlogerie's most sophisticated complications, always retaining the robust, legible character that defined the original. The Fifty Fathoms Chronographe Flyback, reference 5085FB-1140-52B, stands as one of the most ambitious expressions of that philosophy — a serious diver's watch that doubles as a precision flyback chronograph of the highest order.

At 45mm in diameter, the stainless steel case commands an assured presence on the wrist without feeling excessive for a watch engineered to perform in demanding environments. The architecture follows Fifty Fathoms tradition: clean, symmetrical lugs, a crown secured against the elements, and a sapphire crystal of exceptional clarity protecting the dial. The sapphire bezel on this reference is a particularly notable detail — it replaces the conventional ceramic or aluminum insert with a material of supreme hardness and transparency, lending the watch an almost architectural quality where the dial's blue depth seems to extend all the way to the outer edge of the watch.

The blue index dial is rich and multi-dimensional, calibrated for immediate legibility whether in sunlight or under water. Applied hour markers and hands coated in luminescent material ensure reliable reading in low-visibility conditions, honoring the functional heritage of the Fifty Fathoms. The flyback chronograph complication adds a split-second reset-and-restart function at the push of a single pusher, allowing the wearer to time successive intervals with a fluency that a conventional chronograph cannot match — an attribute prized by divers, pilots, and serious enthusiasts alike. The rubber strap completes the ensemble with a water-ready, sport-appropriate fit that is equally comfortable during active use and refined enough for everyday wear.

Powering the 5085FB-1140-52B is an automatic flyback chronograph movement, the product of Blancpain's in-house manufacture in Le Sentier, Switzerland. Blancpain has been producing flyback calibers for decades and the movement architecture found in this reference reflects generations of refinement, featuring a column wheel control system and lateral clutch for smooth, precise chronograph engagement. The automatic winding rotor keeps the mainspring topped up with normal wrist activity, making this an eminently wearable complication watch for daily use.

On the wrist, the Fifty Fathoms Chronographe Flyback occupies that rare space where a watch is simultaneously a legitimate instrument and an object of genuine aesthetic beauty. The blue dial glows with a quality of color that photographs cannot fully capture; the sapphire bezel catches light from unexpected angles; and the 45mm case wears with authority. This is a watch that earns its place in any serious collection, whether the owner is a dive enthusiast, a chronograph aficionado, or simply someone who insists on exceptional quality.

Bizak & Co. is pleased to offer this Blancpain Fifty Fathoms Chronographe Flyback 5085FB-1140-52B in brand-new condition, complete with box and papers, ensuring full manufacturer warranty coverage and complete provenance. Buying from Bizak & Co. means working with a knowledgeable team committed to authenticity, transparent pricing, and a first-class client experience. Browse this reference and our full Blancpain selection at bizakandco.com, or contact our specialists directly to discuss availability, pricing, and how to make this extraordinary watch yours.