1960 Trematic Geneve Bidynator Ref.602

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Beautiful and yet understated timepiece from ca.1960 by Trematic Geneve. It does offer you an affordable way to combine oversized stainless steel case with screw-down caseback, automatic movement, and full calendar with moonphase! It is powered by Felsa 693, a great movement featuring patented Bidynator technology allowing the barrel to be wound while rotor moves in both directions. We add here an excellent unpolished case, elegant silver dial with raised markers and Roman numerals and have nothing to complain about at the end! 

Unpolished case. Fully-functional and keeping time perfectly. Technical warranty: 1 year.

Case:

  • All stainless steel 3-body case with screw-down stainless steel caseback.
  • Unpolished. Excellent condition showing minor traces of wear and minor scratches. 
  • 37 mm (without crown) / 44.5 mm (lug-to-lug) / 20 mm (between lugs)
  • Original steel fluted crown and quick-set pushers.
  • Original acrylic crystal
  • Serial number: 50343

    Movement:

    • Automatic full calendar with moonphase 
    • Felsa Cal.693 signed "Trematic Swiss Made Bidynator Patented"
    • 25 jewels, 18000 A/h, 43 hours of power reserve. 
    • Fine condition showing no ageing.
    • Service history is unknown. Showing strong performance on timegrapher: 310 deg. amplitude, 1 ms of beat error, +10 seconds a day.

    Dial:

    • Original and untouched silver dial in excellent condition showing no ageing or patina.
    • Signed "Trematic Geneve" at 12 o'clock, signed "Bidynator 25 Rubis" and "Swiss Made" at 6 o'clock. 
    • Raised silver hour markers and Roman numerals at quarters.
    • Original silver hour and minute hands showing minor ageing. Original sweep seconds hand and date hand.

    Delivery set:

    • The watch with high-quality black leather strap.
    • Suede leather watch travel case
    • Our company’s warranty certificate, invoice and general terms and conditions.

    Collections: Archive

    Category: Trematic Geneve


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    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.