ジラールペルゴのインスタグラム(girardperregaux) - 12月24日 01時09分

GP ADVENT CALENDAR #23
Constant Girard took an early interest in the tourbillon and in the regular movement rate that it ensured for the movement. While his peers were content with merely adding it on to a given movement, the watchmaker devoted close attention to the structure of the movement and the shape of its components. In the mid-1850s, he thus began developing a watch equipped with a tourbillon regulator on a calibre featuring three parallel bridges. The first outlines of this cult object with its characteristic architecture and its arrow-shaped bridges began to take shape.

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