PoT 2014: Visit at dial-maker Fehr & Cie S.A., La Chaux-de-Fonds (iv)

Dec 02, 2014,04:17 AM
 

We already noted that Fehr & Cie is a fully integrated dial-maker. This implies that they dispose of all necessary capabilities, in terms of expertise and technical equipment, needed to accomplish all steps involved. No wonder they have reserved a dedicated department for production of (applied) indices:






Have you ever realised how complex a contemporary index design could be? Believe it or not, this are technical drawings of two Zenith applied indexes! Guess for what référence they are (actually, that’s quite a task as Zenith uses a really consistent index shape throughout its main collection)!





So, we are talking about lots of tiny, tiny details concentrated on a miniscule surface. Producing them requires high precision and decidedly subtle usage of force. The indices are, just like their dial counterparts, cut out of solid brass plates. Here we have some examples:




Most of the applied indexes are of a simple shape and require a polished finishing. Given their tiny dimensions and extreme fragility, they have to previously be mounted on a supporting frame.








Others, such as the Zenith indices on the drawing above, have several angled but straight surfaces which need to be worked on at various positions. Those are mounted on specialised frames that allow polishing them longitudinally and transversally:






If indices are to receive a matte finish (e.g. on flanks) they are worked on in a tumble polish machine. If matte surfaces are to be applied only on specific sides, the tumbling takes place before mirror polishing.



We think this picture is incredible: who would not love to have such a collection of logos and indexes at home!




After the indices are completed to their final degree of finishing, they are very patiently mounted on a frame...











… and subjected to colouration by electroplating (with basically a similar technique as the ones used for dial blanks).





Finally, they are handed over (pun intended) to a last quality check…



… before they are finally applied onto their respective dial: Compare the size of the individual pieces to the operator's hand - wow! Sooo small!




Would you like seeing a pure example of the meaning of words like "meticulous", "accurate", etc! Take a look on this bench:







The indices have small feet on their underside to facilitate precise positioning at their destined spot on the dial.





The feet fit into corresponding tiny wholes on the dial plates. 



Dial after dial is approaching perfection...




Bottom line:
So we finally have a finished and completed dial. To produce the "face" of our watch really is a serious task and involves various professions all working interlinked with each other. Yet surprisingly, dial-makers such a Fehr offer a very high level of flexibility that is possible not only because of its adaptable machinery but above because of its work-force: all the women and men who passionately work for our enjoyment, are ready to the challenge of trying their skills at a design and/or a technology never tired before, happily fulfilled just every time we take a glimpse on our beloved wristwatch.

Being fortunate of having had the opportunity to take part in PoT 2014, we are often mystified when we – once more – take a closer look at the face of one watch. All those perfectly executed details now have a special meaning to us, possessing now a deeper insight into the subtleties of creating such a detailed micro-environment. A dial in fact represents a complex work of art and beauty but to no lesser extent also demanding technique and precision. Sure: precision! Just the same thing as we expect from our much-appreciated movements.

Probably this kind of feeling is amplified due to the fact that companies like Fehr & Cie S.A. supply a great number of different brands, thereby extending their skills to many, many dials all made with exactly the same care and overcoming similar (if not the same) challenges. Thus, again, as a reminder, the image from the start:




With this we want to close the chapter on watch dials. Our gratitude goes to Zenith, who organised the Fehr factory visit: for sure it was an excellent idea to let us appreciate the "world" of dial making in all detail (pun intended). Our sincere thanks goes to Fehr & Cie and equally to all of their kind employees who patiently allowed us to peek over their shoulders and to interrupt their work. We would like to express our gratitude especially to Fehr’s CEO, Monsieur Luthi, who dedicated a significant amount of his precious time to guide us through the factory.

We hope we've passed on clear information on this very intensive visit. If so, we are sure that you agree with us that from now on every dial has its own story to tell… Thank you all for reading; and stay tuned: we're preparing a report on the Zenith factory tour, to be posted ASAP!

Elio & Magnus

 
  
This message has been edited by Ornatus-Mundi on 2014-12-07 05:24:51

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PoT 2014: Visit at dial-maker Fehr & Cie S.A., La Chaux-de-Fonds (iii)

 
 By: Ornatus-Mundi : December 7th, 2014-09:35
Ahhh! We already know you were impatiently awaiting this kind of stuff! Those of you that gave us the honour of reading the first and second parts of our report ( click here! ), certainly have discovered a great number of fascinating and surprising detail...  
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PoT 2014: Visit at dial-maker Fehr & Cie S.A., La Chaux-de-Fonds (iv)

 
 By: Ornatus-Mundi : December 2nd, 2014-04:17
We already noted that Fehr & Cie is a fully integrated dial-maker. This implies that they dispose of all necessary capabilities, in terms of expertise and technical equipment, needed to accomplish all steps involved. No wonder they have reserved a ded...  
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Great series of posts, Magnus! :)

 
 By: blomman Mr Blue : December 7th, 2014-11:19
Very interesting. Thank you for bringing us along into the Manufacture! :) Best Blomman
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It's a pleasure, Blomman!

 
 By: heartbreaker : December 9th, 2014-10:25
When we've taken those pictures, it was indeed not only for our personal pleasure, but also to share with you our experience. Glad to read you've appreciated our posts! Ciao, Elio
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Very informative post Magnus, nice presentation! (nt)

 
 By: timerider : December 7th, 2014-12:06
.
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Thanks timerider! [nt]

 
 By: heartbreaker : December 9th, 2014-10:26
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Wonderful article

 
 By: Ophiuchus : December 7th, 2014-12:44
I have always wondered what place makes the smallest details such as these indices. I am in awe of the sheer multitude of details this company must handle in such small pieces. As a watchmaker and machinist too, I appreciate them allowing even a blueprint... 
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I would be *really* interested to read your judgement...

 
 By: Ornatus-Mundi : December 7th, 2014-14:55
on the tolerances and the level of sophistication that goes into this processes - from a watchmaker's perspective! Cheers, Magnus
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Well...

 
 By: Ophiuchus : December 7th, 2014-17:10
if you're that interested in something that would bore anyone but me... It's clear that the indices are friction fit to the dials very precisely- their tolerance on the 2 small pins that locate them to the dial are marked (0, -0.02), meaning the shafts mu... 
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Thank for your eyeopening words, Ophiuchus!

 
 By: heartbreaker : December 9th, 2014-10:42
I love those kind of technical drawings and I've immediately taken pictures of them, when I've had this opportunity in Fehr, as well as in Hublot and in Zenith. And I've particularly appreciated your comments, because they reveal so much of the many diffi... 
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Oh my

 
 By: Ophiuchus : December 9th, 2014-17:41
I am no one special, just a man trained as a watchmaker and a machinist. Surely there are many other PuristS, such as Mr. Corson, also so, and much more skilled than I that could have given an even deeper view on the subject than I ever could. But thank y... 
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great report, thanks

 
 By: Bruno.M1 : December 7th, 2014-12:34
I visited a dial manufacture too and it was a great experience but I wonder..... are some dials still painted by hand or are it always prints? I know the cheapest are even stickers
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What I heart is that enamel dials as well as dials with bold lumina...

 
 By: Ornatus-Mundi : December 7th, 2014-14:22
are still painted by hand - to some extend. Other than that, I think this would be too expensive and people would likely wonder about variations... Best, Magnus
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About the application of luminous material...

 
 By: heartbreaker : December 9th, 2014-10:53
I've recently had to study a bit how luminous materials may be applied on dials and I've found this explanation on the RC Tritec's website (the Company that produces the famous "Swiss Super-LumiNova®"): Application Tooling Luminous pigments are mixed with...  
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Thanks for the flowers, just want to note this a collaborative effort...

 
 By: Ornatus-Mundi : December 7th, 2014-14:20
between Elio Pascucci (heartbreaker) and myself. Elio together with me drafted the text, images are marked according author. It was (and further on will be with the Zenith factory reports) a great experience to draft this together - in a true PuristS mann... 
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- A true Purist manner - WOW!!!

 
 By: heartbreaker : December 9th, 2014-10:57
Thank you Magnus: now my room is full of flowers ;-) I'm looking for the next PoT: my [new] camera and my pen are ready to start ;-) Ciao, Elio
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Fascinating! Thank you Magnus.

 
 By: Sandgroper : December 7th, 2014-17:22
Cheers Francois
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Yes, I think "fascinating" is the right word!

 
 By: heartbreaker : December 9th, 2014-11:00
You're right, François: as we've already written, the Fehr Factory visit was highly interesting and fascinating. Thank you, Elio
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