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An Insider's Look at F.P. Journe - Part 4
Chronomètre Optimum movement
Every watchmaker interested in precision has to deal with the same four major issues. If all four of these issues could be resolved, one would obtain the perfect watch. But like the Perpetual Movement or the Fountain of Youth, this quest for the Holy Grail is not achievable in our lifetime. But this does not mean that we should not attempt to get closer to it.
Attaining that perfection is Francois-Paul Journe's obsession, and what makes him return to his workbench day in and day out.
The issues in question are plainly illustrated in the conception and making of the F.P. Journe Chronomètre Optimum. (Note: there is a reason that it is called the "optimum" - Journe is a man of few but highly selective words).
The Chronomètre Optimum symbolizes the very essence of precision for a wristwatch. It is probably the most complicated three-handed (four-handed if you count the power-reserve indicator) watch ever.
It addresses the aforementioned four major issues of a mechanical watch's precision:
1. The linear delivery of power. Like the Chronomètre Souverain (see "Power or Precision? An Insider's Look at F.P. Journe, Part 1"), the Chronomètre Optimum has two barrels to insure the stability of the driving force.
2. The regulating of power delivery. The Chronomètre Optimum is outfitted with a Remontoir d'Egalité (constant-force remontoire, Patent EP1528443.A1; see "Who Needs Constant Force? An Insider's look at F.P. Journe, Part 2"). Additionally, for the first time, the Remontoir is made of titanium for greater efficiency due to its lightness. As we have seen in the past few years, many watch companies are introducing constant-force devices. Be wary of their marketing claims. If the system to regulate the delivery of power is too heavy, it creates too much friction and thus makes it counterproductive. The heavier it is, the more power it needs to counteract the added friction, creating an unsolvable cycle. This is why Journe's is super light.
3. The issue with lubricants. This is 2015, not 1801! Whereas Abraham-Louis Breguet was constantly struggling to find the best lubricants of his time (including animal grease and even fish oil), today's synthetic lubricants offer a great longevity and are immune to drastic changes in temperature. There are two main parts that need to be lubricated in a timepiece: the pivots of the gear train and the regulating organs. At 21,600 vph, the lubricants used for the regulating organs are going over more than four years before drying up, therefore creating more friction and leading to a loss of amplitude, thus losing in accuracy. This is usually the time to have your timepiece serviced. So the problem becomes the deterioration of lubricants, not the use of them!
One way to deal with this issue is to avoid using lubricants altogether.
Journe says, "The use of silicium is the wrong answer to the right question." Silicium (silicon) creates virtually no friction and hence does not need lubricants. But silicium is extremely fragile, and would need to be replaced at each overhaul. This is as long as it is available. If not, there will be no way to replace that part, and the movement will end up in the garbage. "My watchmaking philosophy is to make watches that will still work in 200 years," Journe says. "Those made 200 years ago are still in working order today if they have been maintained regularly. It is for this reason that I only use solid materials that have proven their worth rather than modern materials that will probably be unable to be repaired in a few decades."
By patenting a brand new escapement system (the EBHP High-Performance Bi-axial Escapement), Journe was able to avoid the use of lubricants.
EBHP is the only direct impulse escapement to start up on its own. And not only does it function without lubricants, it also has a far greater output than do the majority of escapements: 50 hours without loss of amplitude. Many dual-wheel escapements have been created in the past, the most efficient being A-L Breguet's "natural" escapement.
4. The "heartbeat" of a movement. The Chronometre Optimum is fitted with a spiral with Phillips curve, insuring better equilibrium.
The two different second hands show the two different outputs of the mechanism. One from the escapement and the other from the Remontoir d'Egalité.
Variations in some of the watches from the Souveraine collection:
- The Chronomètre à Résonance achieves a constant rate when it is exposed to the movement of the wrist. This watch is very accurate because its rate is not affected when the watch is worn.
- The Tourbillon Souverain: the classic tourbillon is not generally an ideal watch in terms of accuracy, but combined with a constant force remontoire, its stability is guaranteed.
- The Chronomètre Souverain: has the same accuracy as the Chronomètre à Résonance but does not cancel out the effects of a moving wrist.
With these four issues addressed, Journe was able to test the watch in two ways. The obvious test was to add lubricants to the bi-axial escapement to see if the watch would function better. It did not. The second was to test the amplitude which continued to have a far greater output than the majority of escapements: 50 hours!
Francois-Paul Journe is far from claiming that he has found the Holy Grail. But the quest for it is a reward in itself. If, one day, you happen to visit the F.P. Journe Manufacture in Switzerland and ask to see where the boss works, you will be taken not to an office, but to his watchmaker's workbench.
Dial of the Chronomètre Optimum
An Insider's Look at F.P. Journe - Part 4
Chronomètre Optimum movement
Every watchmaker interested in precision has to deal with the same four major issues. If all four of these issues could be resolved, one would obtain the perfect watch. But like the Perpetual Movement or the Fountain of Youth, this quest for the Holy Grail is not achievable in our lifetime. But this does not mean that we should not attempt to get closer to it.
Attaining that perfection is Francois-Paul Journe's obsession, and what makes him return to his workbench day in and day out.
The issues in question are plainly illustrated in the conception and making of the F.P. Journe Chronomètre Optimum. (Note: there is a reason that it is called the "optimum" - Journe is a man of few but highly selective words).
The Chronomètre Optimum symbolizes the very essence of precision for a wristwatch. It is probably the most complicated three-handed (four-handed if you count the power-reserve indicator) watch ever.
It addresses the aforementioned four major issues of a mechanical watch's precision:
1. The linear delivery of power. Like the Chronomètre Souverain (see "Power or Precision? An Insider's Look at F.P. Journe, Part 1"), the Chronomètre Optimum has two barrels to insure the stability of the driving force.
2. The regulating of power delivery. The Chronomètre Optimum is outfitted with a Remontoir d'Egalité (constant-force remontoire, Patent EP1528443.A1; see "Who Needs Constant Force? An Insider's look at F.P. Journe, Part 2"). Additionally, for the first time, the Remontoir is made of titanium for greater efficiency due to its lightness. As we have seen in the past few years, many watch companies are introducing constant-force devices. Be wary of their marketing claims. If the system to regulate the delivery of power is too heavy, it creates too much friction and thus makes it counterproductive. The heavier it is, the more power it needs to counteract the added friction, creating an unsolvable cycle. This is why Journe's is super light.
3. The issue with lubricants. This is 2015, not 1801! Whereas Abraham-Louis Breguet was constantly struggling to find the best lubricants of his time (including animal grease and even fish oil), today's synthetic lubricants offer a great longevity and are immune to drastic changes in temperature. There are two main parts that need to be lubricated in a timepiece: the pivots of the gear train and the regulating organs. At 21,600 vph, the lubricants used for the regulating organs are going over more than four years before drying up, therefore creating more friction and leading to a loss of amplitude, thus losing in accuracy. This is usually the time to have your timepiece serviced. So the problem becomes the deterioration of lubricants, not the use of them!
One way to deal with this issue is to avoid using lubricants altogether.
Journe says, "The use of silicium is the wrong answer to the right question." Silicium (silicon) creates virtually no friction and hence does not need lubricants. But silicium is extremely fragile, and would need to be replaced at each overhaul. This is as long as it is available. If not, there will be no way to replace that part, and the movement will end up in the garbage. "My watchmaking philosophy is to make watches that will still work in 200 years," Journe says. "Those made 200 years ago are still in working order today if they have been maintained regularly. It is for this reason that I only use solid materials that have proven their worth rather than modern materials that will probably be unable to be repaired in a few decades."
By patenting a brand new escapement system (the EBHP High-Performance Bi-axial Escapement), Journe was able to avoid the use of lubricants.
EBHP is the only direct impulse escapement to start up on its own. And not only does it function without lubricants, it also has a far greater output than do the majority of escapements: 50 hours without loss of amplitude. Many dual-wheel escapements have been created in the past, the most efficient being A-L Breguet's "natural" escapement.
4. The "heartbeat" of a movement. The Chronometre Optimum is fitted with a spiral with Phillips curve, insuring better equilibrium.
The two different second hands show the two different outputs of the mechanism. One from the escapement and the other from the Remontoir d'Egalité.
Variations in some of the watches from the Souveraine collection:
- The Chronomètre à Résonance achieves a constant rate when it is exposed to the movement of the wrist. This watch is very accurate because its rate is not affected when the watch is worn.
- The Tourbillon Souverain: the classic tourbillon is not generally an ideal watch in terms of accuracy, but combined with a constant force remontoire, its stability is guaranteed.
- The Chronomètre Souverain: has the same accuracy as the Chronomètre à Résonance but does not cancel out the effects of a moving wrist.
With these four issues addressed, Journe was able to test the watch in two ways. The obvious test was to add lubricants to the bi-axial escapement to see if the watch would function better. It did not. The second was to test the amplitude which continued to have a far greater output than the majority of escapements: 50 hours!
Francois-Paul Journe is far from claiming that he has found the Holy Grail. But the quest for it is a reward in itself. If, one day, you happen to visit the F.P. Journe Manufacture in Switzerland and ask to see where the boss works, you will be taken not to an office, but to his watchmaker's workbench.
Dial of the Chronomètre Optimum
Har brukt min nye IWC 5001 i helgen. Å tror ikke jeg skulle si dette noen gang. Men kanskje denne bli en keeper. I alle fall ut høsten.
Portuguese´n sitter godt på armen min. Kanskje noe for stramt med ett hull inn. Å kanskje noe for løst med ett hull ut. Det evige problemet med disse claspene. Sverger egentlig til c-spenne. Men men.. Vi for se hvordan det går.
Portuguese´n sitter godt på armen min. Kanskje noe for stramt med ett hull inn. Å kanskje noe for løst med ett hull ut. Det evige problemet med disse claspene. Sverger egentlig til c-spenne. Men men.. Vi for se hvordan det går.
Redigert:
Hah!
Lover ikke god dettet. Sliter med "fit'en". Har testet med å monteret claspen begge veier. Men blir enten for trang eller løs. Samme problemet var det med Big Pilot. Grrrr
Preben Lidi
Støttemedlem
Jeg hater når ikke jeg finner ut av det med enten for stramt eller for løst på enkelte remmer og lenker. Heldigvis så er den Iwcen du har der lett av vekt i forhold til presence og størrelseHar brukt min nye IWC 5001 i helgen. Å tror ikke jeg skulle si dette noen gang. Men kanskje denne bli en keeper. I alle fall ut høsten.
Portuguese´n sitter godt på armen min. Kanskje noe for stramt med ett hull inn. Å kanskje noe for løst med ett hull ut. Det evige problemet med disse claspene. Sverger egentlig til c-spenne. Men men.. Vi for se hvordan det går.
Fin er den ihvertfall
har selv hatt en slik....for dessverre ingen godfølelse med IWC Portuguese 5001 på armen. Samme problem som jeg hadde med Patek Philippe Nautilus 5726. Enten er den for stram eller for løs på armen. Så er det noen som har lyst på en veldig pen IWC Portuguese 5001 Seven Days som er fra Bjeke 2014. Så send meg en PM. Kommer nok til å legge ut denne på K/S om kort tid.
Er ikke bare mangel på nok hul som er problemet mitt. Er claspen og fasongen på denne som gjør at den ikke passer mitt håndledd. Hadde nok løst det hele med å få satt på en annen rem med c-spenne.
- Medlem
- 24. april 2013
- Innlegg
- 395
Fra keeper til KS på fire dager. Det MÅ være rekord Edzilla
Er nok en personlig rekord det @fettstykket
Men når klokken ikke sitter noe godt på armen er det bare tull å la den forbli i mitt eie. Du vet sikkert hvordan det er med en bukse som er alt for trang, eller alt for stor. Bare å gi den bort asap. Kommer aldri til å bli brukt
Håper hun ringer Ghostbusters, så får de håndtere det spøkelse der.... skremmer dritten ut av meg hvertfall
Har siden forrige uke passet på Senior sin gullsub. Er helt sinnykt frekk i denne fargekombinasjonen med blå kjeramisk bezel og blå skive. Å kanskje den "keegeste" Rolex´en man kan kjøpe for penger
Kanskje man skal beholde den i familien....
Kanskje man skal beholde den i familien....
Kona fyller år neste mandag. Å jeg har strevet lengre enn langt for å finne den perfekte bursdagspresangen.
Kunne gjort som tidligere å kjøpt en veske/clutch eller bag fra ett av hennes favoritt brands. Eller parfym, sko eller annet som det motsatte kjønn ofte verdsetter som bursdagspresang. Men nei. I år har jeg virkelig funnet på noe annet. Å jeg håper hun setter like stor pris på denne som meg
Å for de som lurer. Ja den er fortollet etter alle kunstens regler....
Kunne gjort som tidligere å kjøpt en veske/clutch eller bag fra ett av hennes favoritt brands. Eller parfym, sko eller annet som det motsatte kjønn ofte verdsetter som bursdagspresang. Men nei. I år har jeg virkelig funnet på noe annet. Å jeg håper hun setter like stor pris på denne som meg
Å for de som lurer. Ja den er fortollet etter alle kunstens regler....
"Å for de som lurer. Ja den er fortollet etter alle kunstens regler...."
Er det så mange som har bestemt seg for å bli "Neighborhood law enforcement" her på TS ?
Er det så mange som har bestemt seg for å bli "Neighborhood law enforcement" her på TS ?