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SUSTAINING A CONSISTENT RESONANCE STATE: 

A SOLUTION TO THE 200-YEAR OLD PROBLEM

The pursuit of a consistent state of resonan-
ce is what ultimately led Claude Greisler 
to conclude that Abraham-Louis Breguet’s 
approach, which achieves resonance 
via precise balance-wheel proximity, was 
of little actual utility in the context of 
his precision-oriented horological ambiti-
ons. Greisler’s goal was to harness the 
resonance phenomenon in a wristwatch 
with sufficient consistency to enable 
his wristwatch to operate with marine-
chronometer precision, despite the ever-
changing positions of the human wrist. 
Marine Chronometer accuracy targets 
consistency as its sole goal; meaning that 
it must gain or lose precisely the same 
number of seconds every single day wit-
hout variation. Contrast this with the vari-
able plus/minus approach for a standard 
wristwatch and the difference becomes 
exceedingly clear. It would require two 
balance wheels to dynamically regulate 
each other on a consistent basis in order 
for Greisler’s ambition to be achieved. In 
the end, Greisler’s solution would require 

a return to first principles and a deep 
exploration of the resonance theories of 
Christiaan Huygens (the father of mathe-
matical physics and the inventor of the 
pendulum clock; who had died over 50 
years before Breguet was even born). In 
keeping with his desire to restrict his solu-
tion to the same materials that his watch-
maker-grandfather could have used, 
Greisler’s developed his „Huygens Reso-
nance Clutch Spring“ in steel. He spent 
three years perfecting its shape and 
characteristics: recalculating, optimizing, 
simulating, testing, retesting and achie-
ving incremental improvements until the 
‚Huygens Clutch Spring‘ had developed 
into its current form. This patented clutch 
spring design maintains an optimal a 
state of resonance by synchronizing two 
sets of oscillators (comprising twin balance 
wheels and balance springs) in what 
Huygens described as a state of ‚odd sym-
pathy‘ (oscillating in perfect consonance 
but in opposite directions, while synchro-
nized in anti-phase).

Summary of Contents for ARR18

Page 1: ...OWNERS MINUTE REPEATER RESONANCE CALIBRE ARR18 GUIDE ...

Page 2: ... and adjusting the distance between their balance wheels But with its Mirrored Force Resonance concept Armin Strom proposes one of the most spectacular and innovative applications of the resonance phenomenon in watchmaking The radical innovation lies in its coupling mechanism The twin balances are joined together by a steel coupling spring The tiny vibrations in the spring cause them to resonate a...

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Page 4: ...the crown clockwise in the normal crown position When fully wound the watch has a 96h power reserve Some thirty turns are nee ded to wind the watch fully The barrel of the Minute Repeater Resonance model is fitted with slip springs which are not locked when the movement is fully wound WINDING ...

Page 5: ...rst rotate the minute hand 5 minutes ahead of the desired time then go back by rotating counterclockwise to the desired time IMPORTANT do not operate the crown or slide underwater or when the watch is wet Always push the crown back to the normal position once the settings have been made ...

Page 6: ...site direction If you have not worn your watch for some time and restart it by manually winding it the oscillators will synchronize in less than ten minutes In case of a disturbance such as a shock it takes only a few minutes for the two balan ces to find their resonant rhythm once again ...

Page 7: ...g with one strike for each hour 1 Alternating double strikes by the two hammers on both the high and low pitched gongs chime the quarters 2 Finally the seconds are struck by the second hammer on the high pitched gong 3 To activate the striking mechanism push the slide built in the side of the case all the way down Release the slide and leave it free of all constraints during the chime ...

Page 8: ... utilizes two independent mainsprings gear trains escapements and balances A re sonance watch requires its two balance wheels find a concurrent rhythm so as to continuously regulate one another The follow on challenge is to consistently maintain oscillation rate stability in order to enlist the resonance phenomenon to the cause of chronometric precision This challenge has historically eluded even ...

Page 9: ...gulate each other on a consistent basis in order for Greisler s ambition to be achieved In the end Greisler s solution would require a return to first principles and a deep exploration of the resonance theories of Christiaan Huygens the father of mathe matical physics and the inventor of the pendulum clock who had died over 50 years before Breguet was even born In keeping with his desire to restri...

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Page 11: ...he proud owner of an ARMIN STROM timepiece Our sincere congratulations on your purchase We hope you derive great pleasure from your watch and thank you for your confi dence in us Serge Michel Founder Claude Greisler Co Founder ...

Page 12: ...loss acts of God accidents and natural disasters wear and tear from normal ageing and use of the watch damages resulting from the contact with water if water resis tance tests have not been performed every two years and each time the case was opened or if your watch is not water re sistant In order to benefit from your Armin Strom warranty you will be required to present to Armin Strom or any Armi...

Page 13: ...r watch away from exposure to magnetic fields like electric devices speakers or other electromagnetic appli ances avoid wearing your watch during activities involving strong vibrations or impacts avoid exposing your watch to extreme climatic changes in particular changes in temperature or humidity such as saunas take your watch off before you swim in seawater Rinse your watch with fresh water afte...

Page 14: ...as shocks perspiration cosmetics or salt water or by the natural aging process of the gaskets That is why water resistance cannot be permanently guaranteed and the gaskets must be periodically replaced We recommend having a water resistance check conducted every two years Always make sure that the crown is pressed back in the normal position ...

Page 15: ...ARMINSTROM COM ...

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