![1748 - Le Roy detent escapement mechanism](/images/thumbnails/image840.webp)
P. Le Roy (1717 - 1785) invented the chronometer escapement (detent or chronometer escapement)
Notifier: Władysław Meller
Other records: Timeline of Watchmaking Innovations
P. Le Roy (1717 - 1785) invented the chronometer escapement (detent or chronometer escapement)
Notifier: Władysław Meller
Other records: Timeline of Watchmaking Innovations