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