Breitling Navitimer Chrono-Matic 1806
- Calibre 12 automatic chronograph movement with date indication at 6.
- 17 jewels, 21600 A/h, 42 hours of power reserve.
- Steel case case with screw-down caseback in great condition.
- 48 mm (without crown) / 48 mm (lug-to-lug) / 14 mm (thick) / 22 mm (between lugs).
- Original Breitling signed winding crown.
- Acrylic crystal in great condition.
- Serial number dates this watch to early 70s.
- Black leather strap with contrasting white stitching in good condition.
- Steel Breitling signed buckle.
- Original and very well preserved reverse panda dial with tritium markers.
- Two registers for chronograph 30 minute counter and 12 hour counter.
- Date window at 6.
- Original stick hours and minutes hands. Original orange chronograph seconds hand.
- Multiple scales on dial and slide rule bezel for flight calculations.
A bit of history about the Breitling Navitimer Chrono-Matic (extract from Mono-Chrome Watches)
The most legendary model among the aviator watches is certainly the Breitling Navitimer, a chronograph with an integrated flight computer, which turned 65 in 2017. Pilots from all around the world are still using the Navitimer. Many Air Forces are even using it as regular equipment for their pilots.
The Breitling Navitimer is an evolution of the 1942 Breitling Chronomat, with its typical slide rule bezel. Breitling decided to improve this highly practical bezel and in 1952, the ‘Navi’ was born. This slide rule bezel was used to calculate complicated operations without any other tool. Breitling asked the mathematician Marcel Robert to create a slide rule bezel that could perform complex logarithmic calculations. He created a scale with the 3 most important units for pilots: STAT for standard mileage, KM for kilometres and NAUT for nautical miles. This on-the-wrist computer allowed pilots to calculate fuel consumptions, average speeds or climbing speeds.
In 1952, the very first Navitimer adorned the “Aircraft Owners and Pilots Association” (AOPA) emblem on its dial (the typical double-wing logo) and by 1960, a real cooperation with the AOPA began. The “Navitimer” name is the contraction of “navigation” and “timer”. The first edition to be sold was the reference 806, powered by a manual chronograph movement with column wheel mechanism, the Venus 178.
The Caliber 11 / 12:
The last gap towards modernity was the introduction of an automatic chronograph movement. And the solution came in 1969. The man behind the development of this new calibre was Gérald Dubois, who was working for Dépraz & Cie (now famous with the name Dubois Dépraz). Using a base calibre from Buren (a thin automatic movement with a micro-rotor), Dubois worked together with Jack Heuer and Willy Breitling to develop this brand new idea of an automatic chronograph. And that cooperation led to the creation of a modular chronograph mechanism, added on the top of the Buren calibre (for that reason, the integrated micro-rotor is invisible). The legendary Calibre 11 was born.
One very unique feature of this movement is its left-positioned crown (the pushers are, as usual, located on the right side of the case). The introduction of this movement changed massively the face of the Navitimer that moved from a tri-compax layout to a bi-compax with date at 6 o’clock configuration. It was during the 1970s that the brand introduced the “fried egg”, a massive 48mm watch (reference 1806).