[time-nuts] Am I the only Time Nut who doesn't wear a watch?
Steve Rooke
sar10538 at gmail.com
Mon Jul 11 05:47:55 UTC 2011
Hi Hal,
On 11 July 2011 17:12, Hal Murray <hmurray at megapathdsl.net> wrote:
...
> The crystals on my PCs are ballpark of 1 PPM per C. I'd expect a watch
> crystal to be tuned to human temperature environments and be better than
> that. I guess I'll have to get setup to collect some data.
This watch is not quartz, it is fully mechanical with a balance wheel.
> 4 seconds per day would be great if it were guaranteed over a wide
> temperature range, but that web page didn't mention anything about
> temperature.
I wonder how well the human oven works in maintaining the environment
of a watch xtal or balance wheel, assuming the watch is worn 24x7.
Steve
--
Steve Rooke - ZL3TUV & G8KVD
The only reason for time is so that everything doesn't happen at once.
- Einstein
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