Peter Chong
4
Hmm...Peseaux 7001...
Dear Lord Arran,
A highly unusual choice for an automatic watch. This indicates that he must have created the automatic winding mechanism himself. Would you be able to elaborate if there was anything unusual about the winding mechanism? In comparing the movement shown and the stock 7001, it would appear that he has modified the barrel bridge, presumably to accomodate the winding mechanism.
There also appears to be a fairly large movement ring - probably due to the small dimensions of the C.7001, being only 23.3mm in diameter, and 2.5mm thick.
Interesting.
Paul Gerber and his famous watch with retrograde seconds and retro twin automatic
Hello In reply to Mr. Peter Chong's question some time ago I like to publish the Gerber watch with retrograde seconds and retro twin automatic self-winding. At the same time I show the window which has been decorated with Paul's watches at the famous watc...
Absolutely brilliant, Lord Arran!>>>
Hello, Those are fabulous photographs. Unfortunately, when I was in Zurich recently, I missed the Paul Gerber display... hmmm? We, Thomas and myself, even went to Beyer, but I was not well at the time and did not investigate the store, which I regret a gr...
Thanks...some questions
Dear Lord Arran, Thank you for continuing to share with us. The twin rotor watch is quite interestingly designed, and seems unique. I have four questions, which perhaps you may help answer: 1. what is the base ebauche used for the twin rotor watch? 2. Fro...
some answers and an information about the photos
Dear Peter Chong, I must admit that I have made a mistake and have taken old photos of Paul Gerber's watch. The new and actual ones will be published in due course and time. To answer your quetions: 1. the ebauche is from "Ebauches Peseux" model 7001. 2. ...
Hmm...Peseaux 7001...
Dear Lord Arran, A highly unusual choice for an automatic watch. This indicates that he must have created the automatic winding mechanism himself. Would you be able to elaborate if there was anything unusual about the winding mechanism? In comparing the m...
Peseux 7001 used by Blanc Pain and others
The Peseux 7001--which George Lewis, my teacher in watch school, used to called the "Peso" --is used in very highly modified form by Blanc Pain and several other high quality brands. The Blanc Pain 7001--their reference number is totally different--has ha...
very informative...
thank you Bill. Perhaps, I may observe that a contributor to low profile of the movement is the fact that both rotors are mounted on ball bearings. Would you be able to elaborate on the said Buren rotor? Also, if you could give some examples and tell us m...
try this
probably more info than you wanted but. . . Hamilton/Buren Intramatic article
Are you studying at NSCC, my alma mater?
Hi John, Thanks for the information on the Buren article. It's very good. I hear you are studying watchmaking in Seattle.I learned watchmaking at North Seattle Community College back in the 70's. Is this where you are studying? Bill
Indeed
Hi Bill, That is where I'm going to school and I'm loving it. So much so that I spent a good portion of today (Saturday) sharpening my gravers! Tomorrow morning I get to mirror polish them on a steel lap with some diamond paste. I'm just cutting screws ri...
Good Old NSCC
I have lots of fond memories of the place. My teacher was George Lewis, one of the best watchmakers in Seattle and universally respected among watchmakers in the USA. George was also a former Olympic athelete and a coach for the US team as well as an enth...
Interesting, a question for you
Hi Bill, Thanks for the background, sounds like a good time. Do you know how long WOSTEP has been around even? The instructors there now are Marty Ferguson and Elaine Rolf (I think I got their names right). I'll be posting some pics and a little write-up ...
Back in the Ole' days
Back when I went to NSCC in the 70s, there wasn't any affiliation, but WOSTEP was already active, giving week end seminars all over the USA, with them sometimes in Washington State. They dealt with various movements and procedures. However, at the time, m...
Founded 1967, reorganized 1987, and '92 or '94 for world wide partnerships>>>
Hi Bill, Bloody hell! I hope you have increased your rates! So, how has watchmaking changed or affected you in your years at the bench? While your knowledge and skills have increased with exeperience, how has the work changed? Are you working on the same ...
A long strange trip
Probably the biggest and most unexpected thing to happen in my career is the explosion of interest in wrist watches. I remember my disbeleif when I first heard that there were people who actually collected watches. This will give you an idea of my perspec...
1st the pics of the Mysterieuse and its movement
Dear Mr. Curtis Esq. Please look at the photos below. You see the Mysterieuse in it's entity, then the movement and then the latter dismantled. As I mentionned, this is a constant force escapement by every second. Cheers Lord Arran Apparantly the file is ...
Wonderful pictures, as usual!
and a question for you technical types! Is there any mechanical justification for using a tourbillon in a table clock? Not, of course, that any is needed. The aesthetic result is justification enough. Incidentally, do you think that Paul Gerber's watches ...
It depends on the orientation of the escapement>>>
Hi Tom, Poising errors, which the tourbillon eliminates, are only noticeable in the vertical plane. If the escapement is horizontal, then there are no registered poising errors. For example, in a carriage clock, if we have a tourbillon fitted to an escape...
Ok Curtis, I can follow that...
but I thought that the point was that poising errors naturally vary according to the position of the escapement. Thus a watch's rate of gain or loss varies depending on whether it is pendant up, or down, left or right etc. Where the position is fixed, as ...
Ah, yes...
Hi Tom, Excellent observation and one which can't be easily answered, as there are many variables and learned opinions from both positions. The counter point to your question is that a balance and balance spring can never be perfectly poised and thus, the...
how about isochronism?
Hi Guys, I was wondering how isochronism might factor into this equation (of vertical tourbillons in stationary clocks). I agree with Tom that basically regulating the daily rate through bench testing will compensate for any and all errors of poise but po...
Constant force?
I wonder if some sort of constant force set up/ escape wouldn't also accomplish this? I was thinking of Paul Gerber's mystery clock. Also, didn't Lange (or someone?) put a fusee into one of their tourbillons with this thought in mind? Or has my imaginatio...
Let's see>>>
Hi guys, First let me offer my opinion on why Paul Gerber added the tourbillon to this piece. I believe he included this as a show of craftsmanship and to make this piece unique for the purchaser. I would not delegate this into the realm of "gimmick" eith...
