1937 Tissot Cal.33.3 CHRO Jumbo "Scarab"

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Authenticity Guaranteed / 14-days Inspection Period / 1-year Warranty

Extremely rare early Tissot chronograph sharing the very same movement with Omega 33.3 and Lemania 15 TL. This movement is considered to be a one of the most important chronograph movements ever built. It influenced the industry and predefined technological development of Omega calibers for many years.

This particular piece is notable for a very big 38 mm full stainless steel case with massive "oxen" or "scarab" fixed lugs thanks to which the watch wears even bigger, the original multi-scale two-tone dial and early execution of the caliber utilizing the reset pusher integrated into the crown.

Professionally serviced in December 2017. Technical warranty: 1 year.


  • All stainless steel 3-body case with snap-on stainless steel caseback. Fixe lugs.
  • Professionally detailed. Excellent overall condition.
  • 38 mm (without crown) / 49 mm (lug-to-lug) / 20 mm (between lugs)
  • Original steel "onion" crown and pushers.
  • Service acrylic crystal
  • Serial number: 781966


    • Manual-winding chronograph
    • Legendary Cal. 33.3 (Based on Omega 33.3 and Lemania 15 TL), signed "Tissot"
    • Gold-plated 17 jewels, 18000 A/h, 40 hours of power reserve.
    • Excellent overall condition
    • Professionally serviced in December 2017.


    • Original and untouched multi-scale two-tone dial in good condition. Showing uniform aging of the surface.
    • Signed "Tissot" at 12 o'clock.
    • Original blue-steel hands in excellent condition

    Delivery set:

    • The watch with generic NATO strap.
    • Our company’s warranty certificate, invoice and general terms and conditions.

    Collections: Chrono 33.3, Watches

    Category: Tissot

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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.