The Crown-Operation-System (COS) Chronograph

Apr 28, 2012,07:42 AM
 

One of the iconic Habring2   watches, and one of those that really convey the message of the producers. By modifying the Valjoux base movement such that the pushers could be omitted (Chronograph is entirely controlled by the crown), the watch gains elegance and simplicity. Furthermore, fewer serviceable parts are needed, and two holes in the case are missing, resulting in less risk of failing seals.



Here I'd like to show a version where seconds and minute counter both are located on the central axis, and thus indicate elapsed time in the normal time display:



The following graph shows how the system is implemented. An additional wheel on the crown axis is interlinked with a pawl that directly (without the need for a column wheel or a cam/lever construction!) operated the chronograph:



The graph also nicely demonstrates what would happen if you pull out the crown for setting the time: wheel and pawl would simply disengage.

The entire beauty and brilliancy of the construction is immediately apparent once you compare it to a standard ETA Valjoux 7750 movement (left):



Back to the movement (ok, this one here is a bit turbo-charged... more later!):



The COS pawl here is disconnected from the COS wheel. At the 12 to 01 o'clock position you can see the COS spring:



The reset cam:



The elegance of the watch is met with a vibrant design the excites with voluptuous shapes and colours:





The optical benefit of COS is highlighted if you inspect it from the side:



The movement is of course visible from the back, here the handwound version (automatic exists as well):



Finally, on the (=my) wrist:



This message has been edited by Magnus Bosse on 2012-04-28 09:42:37


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A Carinthian Journey - a visit with Maria Kristina and Richard Habring (Part 3b - LAST!)

 
 By: Ornatus-Mundi : April 28th, 2012-07:42
Dear All: our Carinthian Journey is close to its end. But we will do so with a real treat on some of the most exciting watches created in Völkermarkt. Thus, following Part 1 (location and environment), Part 2 (watchmaking itself, restoration) and Part 3a ...  

The Crown-Operation-System (COS) Chronograph

 
 By: Ornatus-Mundi : April 28th, 2012-07:42
One of the iconic Habring 2 watches, and one of those that really convey the message of the producers. By modifying the Valjoux base movement such that the pushers could be omitted (Chronograph is entirely controlled by the crown), the watch gains eleganc...  

i really like the simplicity of the COS without subdials

 
 By: G99 : May 2nd, 2012-13:47
you do of course lose out on a constant second hand, but you can always use the chrono a la MIH. thanks for all the detailed info Magnus. Graham

The Doppel 2.0

 
 By: Ornatus-Mundi : April 28th, 2012-07:43
I wrote about this new edition of the legendary split-second mechanism already recently . However, I now have real-life image material and thus decided to repost an amended version of my original text. The IWC Doppelchronograph is one of the iconic classi...  

It might sound

 
 By: aldossari_faisal : April 29th, 2012-11:53
too technical but to me its pure poetry and seeing this innovative work landing again at the lap of the creator leaves a wide smile on my face... let alone the seduction of the design, color combination and sure the complication... did i forget to say pri... 

The Foudroyante

 
 By: Ornatus-Mundi : April 28th, 2012-07:44
As one of the rarest complications at all, the Foudroyante à la Habring 2 is additionally unique in that it is an addition to a Chronograph mechanism (e.g. Girard-Perregaux), but it is added as a stand-alone complication (well, together with the jumping s...  

i have weakness for Foudroyante

 
 By: aldossari_faisal : April 29th, 2012-12:08
simply amazing. Thanks Faisal

The Tourbillons

 
 By: Ornatus-Mundi : April 28th, 2012-07:44
The last part of this post shall deal with the 'crown of (watchmaking) creation ', the Tourbillon . With Habring 2 , you have the choice of two entirely different versions: On the left you see the traditional Tourbillon with a centrally mounted balance, o...  

Some final words!

 
 By: Ornatus-Mundi : April 28th, 2012-07:45
I think I can spare me a final conclusion or appraisal. I am sure this series of articles shed some light into one of the most likeable contemporary watchmakers. The products speak a clear conceptual language (with in part a bit derivative design, but thi...  

Thank you very much indeed, Magnus...

 
 By: pplater : April 28th, 2012-20:24
Due entirely to your insightful series, the Habrings now have another customer. Cheers, pplater.

Glad to welcome you to the club! :-) [nt]

 
 By: dxboon : April 28th, 2012-22:32
No message body

"Doubly" glad to be joining!"... ;-) [nt]

 
 By: pplater : April 28th, 2012-22:34
No message body

A good choice...

 
 By: dxboon : April 28th, 2012-22:39
...from a watchmaker with a special connection to the complication. Can't wait to see pix of it on your wrist! Cheers, Daos

Magnificent work, Magnus!

 
 By: dxboon : April 28th, 2012-22:38
I feel very lucky to have you as a colleague here on PPro, and believe we both have a real connection to the work the Habrings are doing. I really admire where they seem to be heading with their brand. Thanks for all the wonderful insights and photos. It'... 

Wonderful report, Magnus!

 
 By: sanro : April 29th, 2012-03:40
I have one of those gorgeous brown dials "in the oven" for my wife. It will be our second Habring2 (not that she knows yet ) It won't be our last...

Great visit and insights..

 
 By: hans_jorgen_1968 : April 29th, 2012-12:45
.. Into a young and great watch brand. And as is seems, some great people as well Best Hans

what an oustanding report!

 
 By: nitediver : May 3rd, 2012-13:18
My sincerest thanks Magnus for this wonderful report. It is almost as if we were with you in visting Habring2 at Voelkermarkt. The write up was so personal and at the same time very informative and detailed. I must say that i am seriously tempted by the H... 

Super posts Magnus.

 
 By: foversta : April 28th, 2012-11:07
Actually, I was expecting a lot this part and I wasn't disappointed. Glad to see "real" pictures of the Doppel. Thanks for this comprehensive view on Maria Kristina and Richard Habring's work. Fx

Informative post.

 
 By: KIH : April 28th, 2012-17:29
... I like what they make and actually own one, nice jumping second with my choice of colors in 37mm case. I just wish they make 37mm Doppel 2.0 in 37mm case again in the future. Watches including chronos used to be in 36 or smaller case and why can't the... 

I second that.

 
 By: TdotBean : April 28th, 2012-19:01
A 37mm COS would really make my day ;D Regards Tyler

Thank you for this marvelous report, Magnus!

 
 By: Gary G : April 28th, 2012-19:13
What a masterful combination of visual, technical, and emotional content! I learned a great deal about the movements and got a much better sense of the makers. The Habrings are fortunate to have a friend like you who takes the considerable time needed to ... 

Excellent report Magnus.............

 
 By: Topcat30093 : April 28th, 2012-23:30
Thank you. I have learnt so much from your brilliant collection of essays and photos. They look such a perfect couple and their watches are first class. Regards Tony

This series of posts, is one that I will bookmark for continual future reference

 
 By: RJW : April 29th, 2012-04:11
Thank you Magnus for the entire series. The quality of your writing and photography is wonderful. But even more so, thank you to Maria and Richard for letting you and us into their lives. I like my jump seconds immensely. I will like it even more now that... 

Thanks again!

 
 By: sidneyc : April 29th, 2012-18:21
This series of Introduction to the Habrings is fabulous! Their Doppelgraph 2.0 is just stunning and indeed great value for money for such a high quality complication!

Thanks Magnus.....

 
 By: Darren : April 29th, 2012-20:01
What a wonderful series of reports on a wonderful independent. The Habrings have carved out quite a niche within the watchmaking world - I live virtually every timepiece they put out. Darren

Many thanks

 
 By: nickd : April 30th, 2012-06:34
Hi Magnus, Many thanks for the reports, especially the techie details (just what the doctor ordered in this world of marketing fluff ). I hope Richard and Maria realise what a great ambassador they have in you. Could they use some of your images on their ... 

A terrific series of posts--thank you!

 
 By: expwmbat : May 1st, 2012-11:04
Richard and Maria are wonderful people producing wonderful watches. I am happy to be a patron of their business, and frankly, would buy another of their watches in a heart-beat dead-second if they had another case design option! If I may, there is one thi...