Mitch K
2842
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.

Manufacture
ED209 · Nov 17, 2012
Explore the Armin Strom Coffret Tourbillon's Beverly Hills tour, featuring the in-house calibre ATC11 and unique elemental designs. Discover bespoke options and expert insights.
12 replies5573 views

Reference Guide
patrick_y · Dec 18, 2022
Explore the Bulgari Octo Finissimo Automatic's movement manufacture in Le Sentier. Patrick_y's factory tour reveals the craftsmanship, design philosophy, and collector insights into this ultra-thin timepiece.
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Manufacture
cazalea · Jun 13, 2016
Discover Armin Strom's in-house movements, unique design philosophy, and the Max Chilton Edge Watch. Cazalea's report from Texas Motor Speedway.
9 replies3284 views

Collection
David_S · May 1, 2019
David_S shares his 10-year luxury watch collecting journey, detailing his passion for perpetual calendars, chronographs, and dual time zones. Explore his A. Lange & Söhne Triple Split and other pieces, and join the discussion on collection strategy.
47 replies18404 views

Complications
Spangles - Dr. Tabby · May 11, 2020
Explore the intricate art of guilloché dial making with a comparison of Metalem and Comblemine. Discover expert insights on craftsmanship, materials, and techniques behind Czapek and Armin Strom dials.
36 replies11833 views

New Release
DonCorson · Apr 1, 2012
Armin Strom at BaselWorld 2012: Discover the brand's shift to in-house movements, new series like One Week and Manual, and the legacy of Mr. Armin Strom.
1 replies916 views

Collection
patrick_y · Feb 3, 2021
Explore Roland Iten belt buckles, the 'Philippe Dufour of Belt Buckles,' with Patrick_y. Discover why these mechanical marvels offer a unique luxury experience for watch collectors.
14 replies4063 views

Manufacture
219 · Jul 2, 2015
Explore "Naissance dâune Montre" by Guardians of Time: Philippe Dufour, Greubel Forsey's project to preserve traditional hand watchmaking skills.
19 replies9306 views
A pair in Resonance.
By: Mitch K : October 1st, 2017-21:57
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. Fas...
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...
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...