MOSABA cal. 9162, 9164 and 9210), 360 Hz ( Bulova Accutron cal. 214 and 218), 480 Hz (Bulova Accutron cal. 2300) and 720 Hz ( Omega Megasonic cal. 1220 and 1230). Omega F300Hz and Speedsonics series are common examples of ESA MOSABA based watches. From Cantilevers in microelectromechanical systems  (Wikipedia, accessed