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Thank you Harry and let me clarify about sonneries

November 14 2006 at 7:35 AM
GĂ©rald Roden  (Login RodenG)

Dear Harry and fellow friends of The Purists !

I think your pictures are great and demonstrate if necessary the passion you have for Horlogerie. Since I joined Roth and in 1999 Genta I have a passion for Sonneries, Minute Repeaters and Grande Sonneries.
Since then I have heard a lot linking the art of watchmaking more to the world of wizards than watchmakers !

Hopefully thanks to sites like yours and more knowledge in magazines dedicated to watchmaking things are slowly getting clearer.

First of all let me confirm that to the exception of the new HW made by Claret the Manufacture Roth and Genta is the only one to manufacture in serie
since the early 90 Grandes Sonneries Westminster Carillon with a tourbillon escapement. I am not taking into consideration watches that are made as "prototypes" in one unit. These movements have a lot of variation but the knowledge and the experience means a lot in this kind of craftmanship and what is important is to reproduce and to keep the knowledge.

We are since 2000 producing from 5 to 8 pieces a year. And every time improving. Improving the sound, improving the mechanism. We already five years ago patented a system to block the stem when the ringing sytsem is in motion. We developped a new system to record our progress in sound, loudness, accuracy of the notes, tempo. This will also unable us to finalise our new minute repeaters that we start to deliver early next year.

We have drastically improved our tourbillons as we make about 300 a year now for both brands. But can you imagine the pace for improving Sonneries ! This is giving me every day a big lesson of modesty.

Our grande sonnerie is a completely integrated movement. In other words it is not an additional mechanism added to a base movement. I want also to emphasize that a Carillon sonnerie is with four hammers and that the sound automatically gets weaker because the strength of the spring is divided by four instead of three. A three hammer sonnerie (like the one from AP, hi TM)
is by definition louder and easier to assemble and regulate.

The complication of a watch according to our standard is not an assembly of complications but is linked to its complexity that is requesting the highest level of knowhow in this difficult art.

Our sonnerie hammers the time 35040 times a year using its four hammers in addition of being a minute repeater and this is magic even though we worked very much on the technics of micromechanics and acoustics.

I am proud to share this with you guys, proud of our team in Le Sentier and Geneva and very soon we shall have a visit of two of you and I propose to share with you more on this.

Thank you for reading and best.

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(Premier Login thepurist178)
AP Discussion Group

Thank you, Mr. Roden, and I have to share, having heard more than a few examples

November 14 2006, 12:34 PM 

of your latest iteration of the Sonnerie Carillon movement you have developed, that the tone is as pure and beautiful as any I have heard. (now if only the volume can be improved...


It is indeed a movement to be proud of, and one I would personally be proud to own, circumstances allowing.

I look forward to the exciting future developments coming from you, which the "grapevine" has told me are exciting indeed!



ps: I agree, Gerald, that more hammers and gongs classically means softer volume for each note, ceteris paribus. But I am sure you also agree that it is a very complex equation; I have heard a repeater the size of a Swiss 10 cents piece that has magnificent volume, and a full Westminster 5 gong chime that was as loud as a basic minutes and hours repeater.

The size of the hammers, the strength of the springs, the casework, etc etc etc.

It ain't easy, and you know I appreciate what tremendous progress you guys have made, my own personal past preferences notwithstanding!

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Magnus Bosse
(Login mbosse)
AP Discussion Group

Say, Thomas, you heard the miniscule Capt Minute Repeater? Please tell us more... NT

November 26 2006, 10:24 AM 


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(Login EuJax)
PP Discussion Group

Very interesting, especially to hear from you Mr Roden...

November 15 2006, 4:47 AM 

Am happy to know Daniel Roth is growing and improving and of course, am proud to be a Daniel Roth watch fan. Please do bring us more news whenever you have the time. Cheers.


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(Login bernardcheong)
AP Discussion Group

Thank you Mr Roden. I agree.

November 15 2006, 3:25 PM 

I have had a rare chance to examine three of these amazing macines of art from GG and DR. They were from some years ago, but were fascinating nonetheless.

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