A pair in Resonance.

As best as I know there are four watches in the market that are said to have Resonance movements. Here is 50% of them. The Armin Strom and the FPJ.

The Armin Strom utilizes a clutch spring to keep the two movements in Resonance. A truly magical piece. Fascinating to watch the movement as the Springs move in harmony back and forth. The two second hand dials are mirror images of each other and does take a moment to get used to. They are in perfect harmony.

Then there is the FPJ Resonance that we all know about. Resonance is based on the proximity of the two escape wheels on the reverse side. I told that in a vacuum environment the watch will not achieve Resonance.

The only 2 other watches that I know of that have a resonance feature are the Duality by Dufour (thought I'm not quite sure that it has true resonance) and the Haldiman dual tourb.

Cheers.

💰272 Marketplace Listings for F.P. Journe›

One more

By: als1678 : October 1st, 2017-22:31

Beautiful watches! I believe that Rydis Silva also makes a resonance watch although I have not seen one in person. Few additional points - the chronometer resonance does work in vacuum despite claims to the contrary by some. Experiments confirming the eff...

Mr. Journe said recently that air actually impedes the effect a bit [nt]

By: Spangles - Dr. Tabby : October 2nd, 2017-06:07

Mr. Journe actually coined the term Resonance

By: Spangles - Dr. Tabby : October 2nd, 2017-06:11

Here is the interview, he says a lot of interesting things!

He mentions a new design for the resonance

By: Spangles - Dr. Tabby : October 2nd, 2017-06:17

In other interviews, he has mentioned a new design for the chronometre optimum, and some sort of watch with an unnamed astrological complication.

Really interesting to see a side by side shot of these two very unusual timepieces and complication

By: Alkiro1 : October 2nd, 2017-00:40

I couldn’t imagine that the case size difference could be so big between the Armin Strom and the FPJ 😳 But I particularly love the complementarity of these both watches. The FPJ is dressier and formal while the AS points out the technical nature of this c...

Fascinating subject for me

By: nwk00 : October 2nd, 2017-06:23

Like you said there is the FP Journe Resonance, Armin Strom and Haldimann H2. It is indeed a very rare complication. I am not sure if Rudis Sylva version is a resonance though. From what I understand, the two balance wheels mesh with one another. It sound...