Blancpain Fifty Fathoms Flyback Chronograph 45mm 5085FB-1140-52B

Blancpain Fifty Fathoms Flyback Chronograph 45mm 5085FB-1140-52B

The Blancpain Fifty Fathoms Flyback Chronograph is a true professional dive watch that combines legendary underwater heritage with advanced chronograph functionality. As part of the Fifty Fathoms collection—widely regarded as the first modern dive watch—this model represents the pinnacle of Blancpain’s tool-watch engineering.

The 45mm stainless steel case offers a bold and commanding presence, built to withstand extreme conditions while maintaining a refined finish. The deep blue sunburst dial adds richness and depth, featuring luminous hour markers and hands for exceptional legibility both underwater and in low-light environments.

A unidirectional rotating bezel with a sapphire insert ensures durability and scratch resistance, while the chronograph subdials are cleanly integrated for precise timing. The standout feature is the flyback chronograph function, allowing instant reset and restart of timing with a single push—ideal for consecutive timing events.

Powered by Blancpain’s automatic chronograph movement (Caliber F185), the watch delivers reliable performance with a power reserve of approximately 40 hours. The watch is typically paired with a sail-canvas strap, reinforcing its rugged, purpose-built identity.

Key Highlights

• 45mm stainless steel case with professional dive construction
• Deep blue sunburst dial with luminous markers
• Flyback chronograph complication
• Unidirectional rotating bezel with sapphire insert
• Automatic Blancpain Caliber F185 movement
• Approx. 40-hour power reserve
• 300m water resistance
• Sail-canvas strap for durability and comfort

Why It Stands Out

This is not just a luxury watch—it’s a serious dive instrument with high horology backing. The flyback chronograph is rarely seen in dive watches, and Blancpain executes it at a level that rivals far more expensive brands.

This is:

• A true tool watch with heritage (Jacques Cousteau era roots)
• A high-complication diver (very rare category)
• A collector-grade piece that still performs in real conditions