Eddie's early version Prs5, only 170 released according to the man himself.
Eddie's early version Prs5, only 170 released according to the man himself.
Last edited by bobc; 21st November 2020 at 14:16.
My Uni/Bi Compax thing doing it’s thing outside Lidl, oh the glamour....
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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.
I think the correct term is two register.
Here's my Top Time from 1965.
Cheers,
Neil.
I do love a vintage two register.
Leonidas.
Cheers,
Neil.
Universal Geneve Compur.
Cheers,
Neil.
My Heuer 1550 SG is the only one I have. The UG and Prs5 ^^^ look great.
Hamilton Intra-matic
Not the best photo, but here is my trusty rose gold Longines
A
It seems I'm a sucker for a two register chrono!
Last edited by tobywatches; 22nd November 2020 at 16:56.
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!
Hamilton and CWC are my two
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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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This - whatever it is - is in my current collection
Had this one briefly
Compax explanation here:
https://www.watch-wiki.net/index.php?title=Compax
Courtesy of LouS - Omegaforums
Mine all look the same
Last edited by Sinnlover; 24th November 2020 at 22:08.
Last edited by pacifichrono; 24th November 2020 at 20:58.
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/
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.
Two registers, yet one subdial, half compax ?
Last edited by pepere13; 9th September 2021 at 06:29.
That is a fantastic group Pepere13.
i have this WW2 era leonidas.
I do like a bi-compax chronograph.
Last edited by j111dja; 9th September 2021 at 12:44.