ジラールペルゴのインスタグラム(girardperregaux) - 6月28日 14時43分

A splendid Tourbillon with three bridges from the 1880’s. It is rather rare to have a 3-bridges tourbillon fitted in an open-face pocket watch at the time. This one also has the pecularity of mixing two bridge shapes (straight and arrow-shape) on the same movement. The Guinand tourbillon cage and pivoted detent escapement are of particular technical interest. #tourbillon #timepieces #timehistory #horloger #horology #horlogerie #escapement #wotd #watchgeek #watchnerd #watchporn #watchhistory #watchesofinstagram

[BIHAKUEN]UVシールド(UVShield)

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