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Débutante en couture

Coudre des vetements pour poupées est un défi.
Avec beaucoup de patience et de perseverance (10 h de test de machine à coudre en amont et de découpage de patrons), ça donne ça :

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Bon par contre faut pas regarder derrière  !

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Trop grande pour Sarah la robe…C’est pas gagné !

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73 réponses sur « Débutante en couture »

Maintenant je comprends pourquoi je suis si réticente à me mettre à la coututre… He bien non, je ne serai définitivement pas une desperate housewife ! Pas mal du tout pour un début (enfin, juste le devant quoi !) 😉

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Understanding COSC Validation and Its Importance in Horology
COSC Certification and its Demanding Standards
COSC, or the Official Swiss Chronometer Testing Agency, is the authorized Swiss testing agency that attests to the accuracy and accuracy of timepieces. COSC accreditation is a sign of quality craftsmanship and reliability in chronometry. Not all watch brands seek COSC accreditation, such as Hublot, which instead adheres to its proprietary strict standards with mechanisms like the UNICO calibre, reaching similar accuracy.

The Art of Exact Chronometry
The central system of a mechanical timepiece involves the mainspring, which delivers energy as it unwinds. This system, however, can be prone to external factors that may impact its precision. COSC-certified movements undergo rigorous testing—over 15 days in various circumstances (five positions, three temperatures)—to ensure their resilience and reliability. The tests measure:

Mean daily rate precision between -4 and +6 secs.
Mean variation, maximum variation rates, and impacts of temperature variations.
Why COSC Validation Is Important
For watch enthusiasts and collectors, a COSC-accredited timepiece isn’t just a piece of technology but a demonstration to enduring excellence and accuracy. It represents a watch that:

Offers exceptional reliability and accuracy.
Provides assurance of superiority across the complete design of the watch.
Is likely to hold its worth more efficiently, making it a wise choice.
Famous Chronometer Manufacturers
Several renowned brands prioritize COSC certification for their watches, including Rolex, Omega, Breitling, and Longines, among others. Longines, for instance, offers collections like the Archive and Spirit, which highlight COSC-accredited mechanisms equipped with cutting-edge substances like silicon equilibrium suspensions to improve resilience and efficiency.

Historical Background and the Evolution of Timepieces
The notion of the chronometer dates back to the need for accurate chronometry for navigational at sea, highlighted by John Harrison’s work in the eighteenth cent. Since the official establishment of Controle Officiel Suisse des Chronometres in 1973, the accreditation has become a benchmark for evaluating the precision of luxury watches, maintaining a tradition of superiority in horology.

Conclusion
Owning a COSC-certified watch is more than an aesthetic choice; it’s a commitment to quality and precision. For those appreciating accuracy above all, the COSC certification provides tranquility of mind, guaranteeing that each validated watch will operate dependably under various circumstances. Whether for personal contentment or as an investment, COSC-accredited timepieces stand out in the world of watchmaking, bearing on a legacy of precise timekeeping.

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