今日は朝早起きしました。
霞おねえちゃんに起こしてもらったが正解ですが・・・
今日はお昼にアクシデント（ほ・・）がありまして夜だけでした。
明日からこそがんばりますがんばります。
今日の経験：+1.0% @16.0%
RO ギルドboh活動日誌
RO ギルドboh活動日誌
今日は朝早起きしました。
霞おねえちゃんに起こしてもらったが正解ですが・・・
今日はお昼にアクシデント（ほ・・）がありまして夜だけでした。
明日からこそがんばりますがんばります。
今日の経験：+1.0% @16.0%
デスペナ１Ｍの世界へようこそ（笑）
フリーデスの期間を少々味わっておかないと、１％以上になると死ぬのつらくなりますよー
まあ、基本はゆっくりがいいと思いますけどね。
追い込まれたら焦ればいいんです（とおいめ
デスペナも慣れれば大して痛くないですよと。
風ひなは最近かつてのかすみんのように死にまくってますよ、と。
bossa nova jazz
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Understanding COSC Validation and Its Importance in Horology
COSC Accreditation and its Rigorous Standards
COSC, or the Official Swiss Chronometer Testing Agency, is the official Swiss testing agency that verifies the accuracy and precision of timepieces. COSC accreditation is a sign of superior craftsmanship and reliability in chronometry. Not all watch brands seek COSC accreditation, such as Hublot, which instead adheres to its own demanding standards with mechanisms like the UNICO calibre, reaching similar precision.
The Science of Precision Chronometry
The central mechanism of a mechanical timepiece involves the mainspring, which provides power as it unwinds. This system, however, can be prone to external elements that may impact its accuracy. COSC-validated mechanisms undergo rigorous testing—over fifteen days in various circumstances (five positions, 3 temperatures)—to ensure their durability and dependability. The tests measure:
Average daily rate precision between -4 and +6 secs.
Mean variation, highest variation levels, and effects of temperature variations.
Why COSC Accreditation Is Important
For watch enthusiasts and connoisseurs, a COSC-certified timepiece isn’t just a piece of technology but a proof to lasting excellence and precision. It signifies a watch that:
Presents outstanding reliability and precision.
Provides confidence of superiority across the entire construction of the watch.
Is probable to retain its value better, making it a smart choice.
Well-known 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 Soul, which highlight COSC-certified movements equipped with innovative materials like silicone balance springs to boost resilience and efficiency.
Historic Context and the Development of Chronometers
The concept of the chronometer dates back to the requirement for exact chronometry for navigation at sea, emphasized by John Harrison’s work in the eighteenth cent. Since the formal establishment of COSC in 1973, the validation has become a standard for evaluating the precision of luxury timepieces, sustaining a tradition of superiority in watchmaking.
Conclusion
Owning a COSC-validated timepiece is more than an visual selection; it’s a commitment to excellence and accuracy. For those valuing accuracy above all, the COSC validation provides peacefulness of thoughts, guaranteeing that each certified timepiece will perform reliably under various conditions. Whether for personal contentment or as an investment decision, COSC-certified timepieces distinguish themselves in the world of watchmaking, bearing on a tradition of careful chronometry.