[time-nuts] Low cost synchronization
phk at phk.freebsd.dk
Fri Aug 19 04:36:44 EDT 2005
In message <66B1D48018FCC54B9587F4DE7089088916EF08 at OSACHNE002.swatchgroup.net>, "Schneuwly, Dominik" writes:
>Have you checked high precision quartz watch mouvements? Longines, a =
>Swiss watch manufacturer, uses a quartz mouvement called "Calibre L546" =
>with +/- 10 seconds per year accuracy. It runs for 10 years (!) on a =
>watch-size Lithium battery.
Read the small print: This is only guaranteed if you wear the watch always.
They rely on your body-temperature for keeping the xtal at a stable temperature.
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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