Blancpain Fifty Fathoms Flyback Chronograph 5085F-1130-52A

About This Watch

The Blancpain Fifty Fathoms Flyback Chronograph combines professional dive watch functionality with a flyback chronograph mechanism, creating a versatile instrument for timing underwater operations. The caliber F385 operates at the elevated frequency of 36,000 vph (5 Hz), enabling the chronograph seconds hand to advance in 1/10th-second increments visible on a peripheral scale. The flyback function allows the chronograph to be reset and restarted with a single pusher press, essential for timing successive intervals without the stop-reset-start sequence. The 45mm steel case maintains 300m water resistance despite the additional chronograph pushers, a testament to Blancpain's engineering. The bi-compax dial layout places the 30-minute counter at 3 o'clock and running seconds at 9, with a date window at 6. The column-wheel chronograph mechanism, visible through the sapphire caseback, is finished to Blancpain's high standards with Côtes de Genève and beveled edges. For the collector who wants a dive-capable chronograph from the oldest watch brand in the world, the Fifty Fathoms Flyback offers authentic heritage and genuine mechanical sophistication.