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Thread: Show your bi-compax!

  1. #1

    Show your Uni-Compax (Bi-Compax)!



    Breitling Transocean 38mm
    Landeron Type XX 38mm
    Last edited by Artium; 10th September 2021 at 17:43.

  2. #2
    Master
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    Eddie's early version Prs5, only 170 released according to the man himself.

    Last edited by bobc; 21st November 2020 at 14:16.

  3. #3
    Grand Master learningtofly's Avatar
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    Technically, these watches are uni-compax. Other variations are compax (three subdials) and tri-compax (four subdials).

    Just saying...

  4. #4
    Quote Originally Posted by learningtofly View Post
    Technically, these watches are uni-compax. Other variations are compax (three subdials) and tri-compax (four subdials).

    Just saying...
    Isn’t it the number of complications, so chronograph with date is bi-compax?

  5. #5
    My Uni/Bi Compax thing doing it’s thing outside Lidl, oh the glamour....




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  6. #6
    Grand Master learningtofly's Avatar
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    Quote Originally Posted by Kingstepper View Post
    Isn’t it the number of complications, so chronograph with date is bi-compax?
    There's no such thing as bi-compax in the classic compax terminology. Yes, I've seen definitions that simply refer to complications but so for as I'm concerned correct use of the terms should be in respect of subdials.

    Some may argue with me, but take this as an example - a tri-compax. Four subdials but there are eight complications in total (in fact, one of the subdials has two complications). It's a tri-compax because it has four subdials.

    Last edited by learningtofly; 21st November 2020 at 17:12.

  7. #7

    Show your bi-compax!

    Quote Originally Posted by learningtofly View Post
    There's no such thing as bi-compax in the classic compax terminology. Yes, I've seen definitions that simply refer to complications but correct use of the terms should always refer to complications provided by/within a sub-dial.

    For example, here's a tri-compax. Four subdials plus additional complications that are ignored for these purposes.
    .
    .
    Interesting, though presumably a bi-compax could be dreamed up that fitted your definition.

  8. #8
    Grand Master Neil.C's Avatar
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    I think the correct term is two register.

    Here's my Top Time from 1965.


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    Neil.

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  9. #9
    Grand Master Neil.C's Avatar
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    I do love a vintage two register.

    Leonidas.

    Cheers,
    Neil.

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  10. #10
    Grand Master Neil.C's Avatar
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    Universal Geneve Compur.

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    Neil.

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  11. #11
    Grand Master Neil.C's Avatar
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    All original UFO.

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  12. #12
    Grand Master learningtofly's Avatar
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    Quote Originally Posted by Kingstepper View Post
    Interesting, though presumably a bi-compax could be dreamed up that fitted your definition.
    I've actually amended the view expressed in my earlier post for clarity (sorry). Yes, you can dream up anything you like, I was just referring to the classic (i.e. UG's own) nomenclature.

  13. #13
    Grand Master Neil.C's Avatar
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    Glycine two reg.

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  14. #14
    Quote Originally Posted by Neil.C View Post
    Universal Geneve Compur.

    Very nice.


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  15. #15

  16. #16
    Journeyman
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    Quote Originally Posted by Neil.C View Post
    Universal Geneve Compur.

    Beautiful!

  17. #17
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    My Heuer 1550 SG is the only one I have. The UG and Prs5 ^^^ look great.

  18. #18
    Master
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    Hamilton Intra-matic


  19. #19
    Master
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    These....





  20. #20
    Craftsman aamaci's Avatar
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    Not the best photo, but here is my trusty rose gold Longines



    A

  21. #21
    Two registers, bi-compax, or something...








  22. #22
    It seems I'm a sucker for a two register chrono!





    Last edited by tobywatches; 22nd November 2020 at 16:56.

  23. #23
    Should wear this more, never wear it but have hung onto it, 18KT Rose, seem to have a thing for Rose currently & 38mm perfect size!

  24. #24
    Craftsman
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    Hamilton and CWC are my two

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  25. #25
    Master
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    Panerai PAM654. I tend to prefer no complications (excepting my Equation of Time) but this one just looks so right.

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  26. #26
    Master hhhh's Avatar
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    Quote Originally Posted by ASW1 View Post
    Panerai PAM654. I tend to prefer no complications (excepting my Equation of Time) but this one just looks so right.

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    That is a great looking watch

  27. #27
    Grand Master MartynJC (UK)'s Avatar
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    This - whatever it is - is in my current collection



    Had this one briefly


  28. #28
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  29. #29
    Master ed335d's Avatar
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    Got a few 2 subdial chronos
























  30. #30
    Grand Master Carlton-Browne's Avatar
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    Courtesy of LouS - Omegaforums
    In the Sotadic Zone, apparently.

  31. #31
    Craftsman
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    Quote Originally Posted by 11erv View Post
    Two registers, bi-compax, or something...







    The omegas are gorgeous.

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  32. #32
    Grand Master learningtofly's Avatar
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    Quote Originally Posted by ed335d View Post
    Got a few 2 subdial chronos
    Git!

  33. #33
    Grand Master Sinnlover's Avatar
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    Mine all look the same
    Last edited by Sinnlover; 24th November 2020 at 22:08.

  34. #34
    Master pacifichrono's Avatar
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    Last edited by pacifichrono; 24th November 2020 at 20:58.

  35. #35
    Master endo's Avatar
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    Uni-compax in a technical sense


  36. #36

  37. #37

  38. #38
    Occasionally you will stumble across the term „bicompax“, when it comes to dial design and the arrangement of totalizers. But what is actually the meaning of this term and where does it originally come from?

    In 1936, the Swiss watch manufacturer Universal Genève SA launched the chronograph “Compax”, which displayed the measured minutes and hours on two sub dials. The “Tri-Compax” chronograph has been presented in 1944/45 and featured also a calendar with date, lunar phase, day and month besides the usual chronograph functions.

    “Bicompax” is a more modern definition for chronographs with a pair of sub dials. This specification has strictly speaking technically no meaning, rather it has gradually established itself in the world of watches. Therefore this term has proven confusing for some watch enthusiasts and has led to a widespread use. Nonetheless, thanks to this terminology, there is no other word, which describes this special dial design with two totalizers better.

    One of the most distinctive Hanhart trademarks is exactly this “bicompax” display format, coming from the legendary Hanhart manufacture Calibre 40, 41 and 42. The totalizers of small second and 30-minute counter are arranged horizontally at 9 o’clock and 3 o’clock. It can be found on every Hanhart chronograph.

    https://www.hanhart.com/en/news/bicompax-chronographs/

  39. #39
    Master Saxon007's Avatar
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    Quote Originally Posted by Artium View Post
    ...

    One of the most distinctive Hanhart trademarks is exactly this “bicompax” display format, coming from the legendary Hanhart manufacture Calibre 40, 41 and 42. The totalizers of small second and 30-minute counter are arranged horizontally at 9 o’clock and 3 o’clock. It can be found on every Hanhart chronograph.

    https://www.hanhart.com/en/news/bicompax-chronographs/
    Sounds good to me!




  40. #40
    Quote Originally Posted by Saxon007 View Post
    Sounds good to me!



    Lovely ^-^

  41. #41
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  42. #42
    Master sweets's Avatar
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    The issue I have with that quoted stuff from Hanhart (and in fact all references to Bi-Compax chronos), is that it shows a lack of complate education.
    In 1935 Universal geneve registered and first used the term compax to describe a 3-6-9 subdial chronograph measuring 12 hrs.
    Everyone says this, even that Hanhart Text above.
    However, in then moving on to discuss Bi-Compax, they completely forget that UG also invented a term for the 3-9 sub-dial chronograph that measures (most commonly) 30 minutes, but sometimes 45 or (rarely) something else. Uni-Compax. When did they do that? 1936. The two terms were effectively invented to describe the whole genre.
    Compax means 2 chronograph sub-dials (mins and hours). Uni-compax only has one (mins). The other sub-dial for running seconds is not included in the terminology.

    UG also invented and registered the descriptors Aero-Compax, Tri-Compax, Space Compax and probably a few more.
    Mostly formats that few people use now.

    But lots of people still make Compax and Uni-Compax chronos. They will often call Compax ones by their correct name, but somehow Uni-Compax has been replaced, and it makes no sense.
    How, if a Compax has 3 sub-dials, can you ever infer that Bi-Compax has 2 ??????

    So there never was a Bi-Compax, because the term was unnecessary, Uni-Compax described exactly what we mean by that.

    It is like saying that the Rolex-style waterproof crown is a Triple-lock. Or that a chrono has Screw-in pushers. We know what it might mean, but the terms are wrong.

    2-register? Fine
    Bi-Compax? Plain wrong, burn the heretic.

    Dave

    ps - here is one of mine



    Maybe 2

    Last edited by sweets; 8th September 2021 at 22:37.

  43. #43
    Master Caruso's Avatar
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    I must admit my ignorance on the origin of the phrase bi-compax. I thought it was to do with the number of sub-dials but what you have shared makes sense, so thanks for enlightening us.

    Quote Originally Posted by sweets View Post
    The issue I have with that quoted stuff from Hanhart (and in fact all references to Bi-Compax chronos), is that it shows a lack of complate education.
    In 1935 Universal geneve registered and first used the term compax to describe a 3-6-9 subdial chronograph measuring 12 hrs.
    Everyone says this, even that Hanhart Text above.
    However, in then moving on to discuss Bi-Compax, they completely forget that UG also invented a term for the 3-9 sub-dial chronograph that measures (most commonly) 30 minutes, but sometimes 45 or (rarely) something else. Uni-Compax. When did they do that? 1936. The two terms were effectively invented to describe the whole genre.
    Compax means 2 chronograph sub-dials (mins and hours). Uni-compax only has one (mins). The other sub-dial for running seconds is not included in the terminology.

    UG also invented and registered the descriptors Aero-Compax, Tri-Compax, Space Compax and probably a few more.
    Mostly formats that few people use now.

    But lots of people still make Compax and Uni-Compax chronos. They will often call Compax ones by their correct name, but somehow Uni-Compax has been replaced, and it makes no sense.
    How, if a Compax has 3 sub-dials, can you ever infer that Bi-Compax has 2 ??????

    So there never was a Bi-Compax, because the term was unnecessary, Uni-Compax described exactly what we mean by that.

    It is like saying that the Rolex-style waterproof crown is a Triple-lock. Or that a chrono has Screw-in pushers. We know what it might mean, but the terms are wrong.

    2-register? Fine
    Bi-Compax? Plain wrong, burn the heretic.

    Dave

    ps - here is one of mine



    Maybe 2


  44. #44
    Grand Master abraxas's Avatar
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    Quote Originally Posted by Neil.C View Post
    All original UFO.

    That is not a bi-compax. It is an "over and under", like the shot guns.

  45. #45
    Craftsman pepere13's Avatar
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    Two registers, yet one subdial, half compax ?

    Last edited by pepere13; 9th September 2021 at 06:29.

  46. #46
    That is a fantastic group Pepere13.

  47. #47
    Master
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    i have this WW2 era leonidas.

  48. #48
    Grand Master number2's Avatar
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    Quote Originally Posted by ed335d View Post

    [/FONT][/COLOR]

    This last year I've been concentrating on dive watches, but that ^^^^^^ is lush
    "Once is happenstance. Twice is coincidence. The third time it's enemy action."

    'Populism, the last refuge of a Tory scoundrel'.

  49. #49
    Master j111dja's Avatar
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    I do like a bi-compax chronograph.




    Last edited by j111dja; 9th September 2021 at 12:44.

  50. #50
    Craftsman
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    Quote Originally Posted by j111dja View Post
    I do like a bi-compax chronograph.




    that hamilton is stunning


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