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1945 Breitling Datora Ref.785 Chronograph

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Amazing and truly rare timepiece by Breitling from ca.1945. The Datora series combines the avant-garde horological technologies of the 1940s with an understated yet very elegant design. It is useful and advanced watch powered by Valjoux 72C, a variation of the legendary Valjoux 72, where "C" means "Calendar" offering robust 3-reg chronograph along with full calendar showing day, date, and month.

This particular example is notable for extremely crisp and probably unpolished stainless steel case and amazingly mint silver-white dial with the charming set of blue steel hands. 

Amazing all original condition. Perfectly functional. Technical warranty: 1 year.


  • Stainless steel 3-body case with snap-on case back. Mixed high polished and satin finishing.
  • Most likely unpolished. All numbers are crisp and visible. Minor traces of use and scratches on the caseback. 
  • 35 mm (without crown) / 43 mm (lug-to-lug) / 18 mm (between lugs)
  • Original unsigned steel crown. Original rectangular pushers in outstanding condition.
  • Original acrylic crystal.
  • Serial number: 608963
  • Reference number: 785


    • Manual-winding with full calendar and chronograph complications
    • Valjoux 72
    • Nickel-plated, 17 jewels, 18000 A/h, 40 hours of power reserve.
    • Service history is unknown, however, the watch shows strong results: 245 deg. of amplitude, +5 seconds a day, 1 ms of beat error.


    • Original dial in exceptional condition showing uneven ageing of the surface which is visible only with the loupe and special light conditions.
    • Signed "Breitling Datora" at 12 o'clock. Signed "Swiss Made" at 6 o'clock. 
    • Raised golden Arabic numerals.
    • Original blue steel hands

    Delivery set:

    • The watch handmade Italian leather strap and generic steel buckle
    • Suede leather watch travel case
    • Our company’s warranty certificate, invoice and general terms and conditions.

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    Sizing Product

    Measuring a watch

    It is always crucial to understand the size of the watch, especially when it comes to vintage watches which are generally considered as too small in comparison with what watch industry offers today. For example, the original Patek Philippe Calatrava introduced in the 1930s was only 31 mm in diameter, while today's classic Calatrava is 39 mm. When you think about 8 mm, it doesn't seem to be a big difference, but believe it is.

    In our condition reports we normally disclose three most important parameters as follows: diameter without crown / lug-to-lug length / lug width. 

    Diameter without crown

    It is, so far, the most important measurement to understand the size of a regular round-shaped watch.It helps you to understand proportions and overall look of the watch. It is important to consider width of the bezel and color of the dial, because certain combinations may make the watch look bigger, while some other smaller. It is all very individual, however there is common understanding:

    Lug-to-lug width

    This parameter will help you to understand whether the watch is comfortable for wearing. You should compare lug-to-lug width with the width of your wrist, and if lug-to-lug width is smaller or equal, then this watch shall be comfortable.

    Lug width

    This measurement is defining what size of strap you need for the particular watch. Depending on era and manufacturer you can find watches with lug width between 14 mm and 24 mm. Most common sizes are 18 mm and 20 mm.