ジラールペルゴのインスタグラム(girardperregaux) - 6月10日 16時38分

The Constant Escapement shot by our friend SJX. Read the full review here at watches by SJX.
The escapement has twin escape wheels and a bow-shaped pallet fork that locks and unlocks the escape wheels, not unlike on a traditional Swiss lever escapement with a single escape wheel.
http://www.watchesbysjx.com/2013/12/hands-on-with-ingenious-girard.html @watchesbysjx

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