DonCorson[AHCI]
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And the Watchmakers… what do they do ? part 1
Sep 30, 2011,02:44 AM
And the Watchmakers… what do they do ?
by Don Corson, September 2011
We
have been to many companies that make watches together. We have seen
the machines. We have seen the parts being made. Once in a while we
have looked over the shoulder of a watchmaker at work. But what is
their real part in watch production? Once we have all the parts, how do
all those parts “fall together” ?
I had the chance to answer
that question during a day-long visit to Armin Strom in Bienne. I was
able to follow a watchmaker as he assembles a complete watch; all the
steps from a tray of finished and decorated parts to a working and
regulated watch. Exactly all those steps that we have been missing in
the genesis of a watch. Simon, our watchmaker for the day, let me take
pictures of all the steps. It was easy to see that Simon’s mastery of
his work, many times I had to slow him down just to get a picture.
We
are starting on a journey which is not for the faint of heart. More
than 200 pictures, when I am not getting in the way approx. 4 hours of
concentrated work. And note; the watch we will be assembling is a
relatively simple 3 hands, small seconds watch with power reserve
indication, an Armin Racing One Week. This is not a big complication.
And we will be seeing only the final assembly. Many of the parts are
already preassembled.
Just to whet your appetite, the finished watch, an Armin Racing One Week:
For your memory, here is the link to my visit 2 years ago where we visited the machine shop.
ahci.watchprosite.com
And here the visit to a Formula 1 training to celebrate the launch of the Armin Racing collection.
home.watchprosite.com
We will start with a quick look at the parts trays, the parts separated more by their position in the calibre than by function.
The plate and bridges:
The barrel:
The dial side winding:
Some bridges:
Winding and setting components:
The ratchet spring and bridge:
The motion bridge and components:
Escapement components:
Our work bench is well ordered:
Last preparations:
Let’s
go! A quick inspection of the plate shows us that there is still one
jewel missing. The pre-assembly preparation of the plate includes
inserting all the jewels and pins and axles. The jewels will have their
positions regulated to have the proper end shakes of the axles.
Simon started out by finding the necessary jewel, placing it in its new home and pressing it home with the jewel press.
Now we
will prepare the barrels by inserting the mainsprings. The springs are
supplied by the mainspring manufacturer pre lubricated with a ring
holding them rolled up smaller than their size in the barrel. As such
it is easy to place the spring in its ring on the barrel, press the
spring out of the ring and then insert the barrel axle making sure that
it hooks properly into the hole in the end of the spring.
Then
the barrel cover is pressed in place using a tool to avoid blemishing
the decoration. A quick brushing with a leather assures that all is
well before the axle is lubricated where it fits in the barrel case and
cover. We will see much lubricating using an oiler throughout the day.
The idea of an oiler is to put just the amount of oil necessary for the
current application on the tip of the oiler. This is then transferred
to the bearing. In this way it is not possible to put too much oil on
the bearing. For the miniscule quantities needed it is impossible to
control the flow of the oil. Here the quantity is controlled simply by
dipping the tip of the oiler more or less deep into the oil. Then all
of that oil is transferred to the bearing.
Then this procedure is repeated for the second barrel.
Simon continues to mount the winding and setting mechanism.
The winding pinion and sliding pinion are mounted on the stem…
which is then inserted in the plate.
The setting lever is then mounted on the dial side…
and fixed with its screw from the bridge side of the movement.
Now we check that the movement of the parts is OK and add a drop of oil on the moving surfaces..
Next we
will be mounting the first wheels. The “mobiles”, wheels and pinions,
have already been mounted in this kit, but Simon shows me how it is
done. To start the pinion is placed on an anvil of the right size in
the staking tool. Then the wheel is put in place and gently pressed in
place being careful that it is centered and not to deform it using a
stake with an inner diameter slightly larger than the pinion.
Then
using a smaller stake and a watchmakers hammer the two are riveted
together by bending over the corner of the wheel seat on the pinion.
Now the mobile is checked for flatness and concentricity on a special tool.
Now it is time for a break. Time to rest the eyes, or do crossword puzzles, or both.
After the break we will continue.
To go to "And the Watchmakers… what do they do ? Part 2" click here
This message has been edited by MTF on 2011-09-30 09:06:25 This message has been edited by MTF on 2011-10-04 01:16:09
Comments:
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And the Watchmakers… what do they do ? part 1
By: DonCorson : September 30th, 2011-02:44
And the Watchmakers… what do they do ? by Don Corson, September 2011 We have been to many companies that make watches together. We have seen the machines. We have seen the parts being made. Once in a while we have looked over the shoulder of a watchmaker ...
And the Watchmakers… what do they do ? part 2
By: DonCorson : September 30th, 2011-02:46
And the Watchmakers… what do they do ? Part 2 by Don Corson, September 2011 Back at the bench we start mounting the going train. With the bridge mounted Simon checks the end shakes of the pinions. If there is no space they will bind and reduce the running...
And the Watchmakers… what do they do ? part 3
By: DonCorson : September 30th, 2011-02:47
And the Watchmakers… what do they do ? Part 3 by Don Corson, September 2011 Now we go to do some more work on the dial side of the movement. We start out by oiling the axles of the up/down gear train that are planted in the plate. Then the gears are place...
HQ posts.
By: VMM : September 30th, 2011-04:37
Thanks you so much for sharing these fabolous technical posts. I've enjoyed them a lot. That movement looks fantastic, love it. The way the bridges, gears and wheels are finished looks great. The whole escapment looks also stunning, it's like a mix betwee...
Nice, Don!
By: RobCH : September 30th, 2011-09:30
Thanks. Takes me back to my watchmaking days...
There should be a prize . . .
By: Dr No : September 30th, 2011-10:28
. . . for excellence in horology journalism, Don, and this article would be my nominee. I can honestly say that my meager understanding of the process has been enhanced as a result. Thanks very, very much. Most cordially, Art
Fantastic post, Don
By: cazalea : September 30th, 2011-12:47
and I too like this watch's design very much. It's not skeletonized but it's intentionally made to look good, and it succeeds. Bravo to Strom for letting you get into the process. Cazalea
Awesome post, DC!
By: Davo : September 30th, 2011-14:38
Well done and many thanks for posting this interesting material.
Thank you....
By: Darren : September 30th, 2011-20:28
very much for this amazing look at the creation of a neat timepiece. Just the pictures alone were worth the price of admission. Darren
What a fantastic...
By: masterspiece : October 1st, 2011-01:37
play-by-play of watch assembly. Thank you, Don, for a great report. Capturing the dexterity and skill taken in assembly, it is easy to see why it is an art form. Would you say that there must be some breathing techniques when assembly takes place? Aloha, ...
Brilliant post!
By: fernando : October 1st, 2011-01:52
Enjoyed the blow-by-blow account and it has also sparked my interest in this brand! Thanks for taking us along on this ride Don.
Great post Don.
By: grumio : October 2nd, 2011-02:57
Thanks for all your efforts - nice photos, and well explained. Really interesting to see all the way through the assembly. Thanks again grumio
Amazing post Don...
By: SamEE : October 2nd, 2011-04:31
The step by step walk through was very entertaining and very informative, now I can visualize what goes into assembling a watch. Thanks to Simon for allowing you to get in his way. Also the watch was very attractive, I will look more into this brand. Than...
The watchmaker: how a fascinating profession!
By: heartbreaker : October 2nd, 2011-14:23
I've read between the lines a lot of respect and a bit of emotion, almost tenderness for the birth of a new watch. Thank you, Don!!! And compliments to Armin Strom!
First Class, Don.
By: BDLJ : October 2nd, 2011-17:17
And top marks to Armin for allowing you access.
It took ages
By: MTF : October 3rd, 2011-05:28
Don, Thanks. It took ages to read through and most require much more study Regards, MTF
Thanks Don ...
By: Kong : October 7th, 2011-20:36
for the detailed report of the assembling of the Armin Racing One Week. It's close to a SOP. I have to re-read a couple of times. Kong
What a post, amazing!!!
By: Hulk : October 10th, 2011-08:53
Don, I ahve never been to a watch manufacturing facility and always guessed what was done, the report is fantastic and shows clearly why these type of watches are so expensive. Cheers steve
Wonderful assembly report, Thank you. But how long really?
By: PoyFR : November 20th, 2011-04:30
When I purchase a watch, any watch, I am always asking myself, how long did it take from sketch to out of the production process when it is made in-house. Despite many visits and my own speculated results, I never and this far managed to know. Nonetheless...
Design, development and industrialisation...
By: DonCorson : November 20th, 2011-05:39
is actually quite time consuming and the larger the quantities of watches to be produced the longer it takes. Several iterations of the design need to be made to be sure that the parts all work as planned and can be easily assembled. We are talking 12 to ...
Thank you for this "voyage"
By: nilomis : September 30th, 2011-03:44
Don Wonderful "strip tease" in reverse. This is the kind of post that I save locally for further reading and enjoyment. Cheers
Thanks Don,
By: Tom the Tinkerer : September 30th, 2011-16:31
A really good post, and somewhere to direct people who ask "so what's really involved" Thanks again Tom
Mostly about assembly
By: amerix : October 1st, 2011-09:58
and less about watchmaking from scratch, as I understand it , and those skills which are no longer taught in the few remaining schools, even in Switzerland. Watch making and watch assembly should be taken for what they are. And not only dedicated to assem...
Touch of the file...
By: nickd : October 1st, 2011-22:24
Unfortunately, apart from things Don mentions such as jewel depth, I'd guess that there's no file work possible on a watch like this due to surface treatments etc. nick
Thanks so much for this brilliant series, Don!
By: Gary G : October 1st, 2011-10:19
One of my very favorite posts in a long time. I learned a great deal. Good to see that the watchmaker is able to do some fabrication work. And, having snapped an anchor shaft myself at the VC school, I understand how tricky that is -- and feel for the app...
It's nice to see
By: Ophiuchus : October 1st, 2011-21:42
Something with real, hands on watchmakers, and not another press release, or brand identity article. I know it's going to be honest and good when you post it Don. Thanks for a wonderful article!
Awesome post, Don!
By: blomman Mr Blue : October 2nd, 2011-07:39
Thank you for sharing this with us! Best Blomman
Great report - I find attachment forms
By: Nomer : October 2nd, 2011-14:52
Thanks Don for this report - all the photo taking was worth it! I find that when I see a watch assembled as in these photos, one gets a better appreciation for the specific time piece; it becomes special. I would not have ordinarily looked at this piece, ...
Many thanks
By: long71 : October 3rd, 2011-06:33
Very enlightening. For those like myself who are still learning, both the photos and the excellent and clearly written explanations are a wonderful education. Further study of these posts will certainly deepen my understanding of both the manufacture and ...