The following wikipedia article: https://en.wikipedia.org/wiki/Omega_Marine_Chronometer
mentions a "*Marine Chronometer clock using an advanced 4.19 MHz quartz resonator giving an unparalleled accuracy of less than 5 seconds per year under calibre 1525*." My guess is that this crystal technology eventually found its way into consumer clocks. Wayne On Sun, Mar 31, 2019 at 3:02 PM Neville Michie <namic...@gmail.com> wrote: > Hi, > I have a Philips quartz clock that runs on 4.19 MHz. > In spite of the high frequency it still runs for years > on a C cell. > Can any of the quartz crystal gurus explain why this > frequency was chosen? I believe that this clock was > supposed to have better than usual accuracy. > Philips always had a high level of engineering excellence. > > cheers, > Neville Michie > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
