VALJOUX CHRONOGRAPH CALIBERS

[george_]

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[Blackbird]

Η σειρά 77ΧΧ δεν αναφέρεται;
Ίσως επειδή δεν προέρχεται από τη Βαλζού.


Sent from my bed wearing fluffy bunny slippers

[george_]

Η σειρά 77ΧΧ δεν αναφέρεται;
Ίσως επειδή δεν προέρχεται από τη Βαλζού.


Sent from my bed wearing fluffy bunny slippers

για λεγε

[Blackbird]

Γύρω στο 1966 η Βαλζού εξαγόρασε τη Βένους. Η καλιμπρα 188 της Βένους έγινε η 7730 της Βαλζού.
Με μικρές αλλαγές γίνανε οι 7733, 7734 και 7736 και κατέληξε με αρκετές αλλαγές στην αυτόματη 7750.


Sent from my bed wearing fluffy bunny slippers

[george_]

Γύρω στο 1966 η Βαλζού εξαγόρασε τη Βένους. Η καλιμπρα 188 της Βένους έγινε η 7730 της Βαλζού.
Με μικρές αλλαγές γίνανε οι 7733, 7734 και 7736 και κατέληξε με αρκετές αλλαγές στην αυτόματη 7750.


Sent from my bed wearing fluffy bunny slippers

ηξερα οτι η 7750 ειναι μια νεα μηχανη!

[marios_ch]

Ωραιο θεμα!!!


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[Blackbird]

Γύρω στο 1966 η Βαλζού εξαγόρασε τη Βένους. Η καλιμπρα 188 της Βένους έγινε η 7730 της Βαλζού.
Με μικρές αλλαγές γίνανε οι 7733, 7734 και 7736 και κατέληξε με αρκετές αλλαγές στην αυτόματη 7750.


Sent from my bed wearing fluffy bunny slippers

ηξερα οτι η 7750 ειναι μια νεα μηχανη!

Εμ, δεν είσαι ο Βασίλης που τα ξέρει όλα. Γηράσκεις αεί διδασκόμενος.
http://en.m.wikipedia.org/wiki/ETA_SA


Sent from my bed wearing fluffy bunny slippers

[george_]

δεν ξερω,αλλα μας χαλασες!για μια 7750 ζουμε!

[Blackbird]

Σιγά μην είναι (σόρυ Γιωρίκα) και Ηρακλής, θρησκεία, θύρα 13.
Όταν παρουσιάστηκε η 7750, το 1974, η κρίση του πετρελαίου, του χαλαζία και του ελβετικού φράγκου είχε ήδη ξεκινήσει. Δεν είναι τυχαίο πως το 1974 σταμάτησε να παράγει όλες τις άλλες μηχανές της, πούλησε την 7734 στους Ρώσους και για κάμποσο καιρό μέχρι και την παραγωγή της 7750 είχε φρεναρισμένη.


Sent from my bed wearing fluffy bunny slippers

[george_]

Οταν η ελβετικη ωρολογοποιια ηταν στα δυσκολα στην εποχη του quartz,η valjoux ηθελε μια νεα μηχανη ,αλλα οχι και πολυ ακριβη!Οι σχεδιαστες ομως εκανα το δικο τους και εχουμε ακομα και σημερα μια πολυ καλη μηχανη που θα βρεις σε παρα πολλα ρολογια

The technical director of Valjoux at the time discussed with Capt the desire of the company to produce an automatic chronograph. It was a matter of corporate pride that Valjoux have an automatic chronometer calibre of its own. The 17 jewel manual wind 7733 chronograph movement with subdials at 3 and 6 o'clock was a Valjoux standard of accuracy and ruggedness, and a preferred movement for Breitling, Tissot, Bulova, Fortis and other makes. Capt was directed to study the 7733 to see if it could be adapted to automatic winding. Realistically speaking, this automatic chronometer would have to be a new design, but Capt studied the 7733 to see what parts and ebauche geometry could be used.
The new calibre designation would be 7750. It was to measure 13.25 ligne, have a day and date indication with quick setting for both. It was to have three subdials; one would be a sweep second hand, the others would indicate 30 minutes elapsed time, 12 hours elapsed time with a large sweep second hand indicating seconds on the main dial. It was a tall order for the young watchmaker and ebauche designer, but Capt had the resources of the house of Valjoux behind him. Capt had been one of Le Sentier's most distinguished and perceptive students and he was asked to teach at the watchmaking school. One is his students, Gerald Gander, showed particular promise and Capt asked him to participate in the design effort for the 7750 at Valjoux.
...
Capt had more to deal with than the design of the movement. He also had to work with the Valjoux manufacturing team to coordinate the tooling required to produce the parts once the designs were finalized, as well as work with outside suppliers.
...
Edmond Capt was one of those cooler heads, believing scraping the tools would be a mistake and a decision Valjoux would regret later. He and the others in Les Bioux who had invested considerable effort in the 7750 quietly made the decision to simply store the tooling for the 7750 in the event of a decision to resume production at a future day. What a prophetic and wonderful decision this was! In 1978, Capt accepted a position as Technical Director at Frederic Piquet in Le Brassus to work on both quartz and mechanical movements.


http://www.zoominfo.com/p/Edmond-Capt/1320297551

[george_]

BB,τελικα εχει ενδιαφερον να διαφωνουμε!Γιατι πολυ απλα με βαζεις και ψαχνω πληροφοριες και ολο και κατι βρισκω!Πιστευω οτι αξιζει αυτο το αρθρο ,στο οποιο εκανα μια μικρη επεξεργασια για να το εχουμε σε μορφη jpeg...διαβασε το,αξιζει!
valjoux 7750


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ΒΒ,πιστευω οτι ηταν μια νεα μηχανη

[george_]

Γύρω στο 1966 η Βαλζού εξαγόρασε τη Βένους. Η καλιμπρα 188 της Βένους έγινε η 7730 της Βαλζού.
Με μικρές αλλαγές γίνανε οι 7733, 7734 και 7736 και κατέληξε με αρκετές αλλαγές στην αυτόματη 7750.


Sent from my bed wearing fluffy bunny slippers

μαλλον οχι ?

[george_]

Valjoux’s management was convinced
that the era of the mechanical chronograph had come to
its end and that this type of timepiece would probably
never again be manufactured.


But the specialists in Les Bioux decided to ignore
this order and with canny foresight neatly packed
away the tools and machinery. Their “insubordination“
paid off in 1983, when demand for mechanical chronographs suddenly
revived. The management was glad to discover that production of the Caliber
7750 could rapidly be resumed, largely thanks to the “illegally“ preserved
tools and machinery that had been tucked away in Les Bioux eight
years earlier.

[Blackbird]

Although Valjoux was the leader in manual-wind chronographs, it was slow to the self-winding party, appointing Edmond Capt to lead the development of a new movement in the early 1970s. Based on the manual-wind Valjoux 7733 (itself a descendent of the Venus 188), the 7750 was first available in watches in 1974, having been one of the first movements to be designed with the aid of a computer.
http://www.calibre11.com/history-eta-7750-tag-heuer-calibre-16/


Still, the ubiquitous 7750 movement (an automatic-winding descendant of the 7733) uses the same springs but nevertheless has a well-earned reputation for ruggedness and reliability.
http://valjoux-7733.blogspot.gr/


Capt was directed to study the 7733 to see if it could be adapted to automatic winding.  Realistically speaking, this automatic chronometer would have to be a new design, but Capt studied the 7733 to see what parts and ebauche geometry could be used.
http://de-timekeeper.com/movement


The company chooses a young watchmaker to lead the project, Edmond Capt.
He will draw his inspiration from the 7733 caliber, the manual chrono from Ebauche SA, the rumor has it that, for the conception, he would have used management’s computer, the only one available at Ebauche SA.
http://www.watchonista.com/2914/watchonista-blog/news/7750-history-all-official-references


Η 7750 δεν προήλθε από λευκό χαρτί κι ούτε ήταν παρθενογένεση. Ήταν μία νέα μηχανή που βασίσθηκε-είχε επιρροές-εμπνεύσθηκε από την 7733.

[george_]

ΒΒ ειναι μια νεα αυτοματη μηχανη με νεο σύστημα μεταδοσης.Νεα μηχανή απο  ενα πρωτοπορο της Ωρολογοποιιας.Ειναι  και ο πατερας της 1185