Hi A magnetically driven tuning fork is a *very* different beast than a modern watch crystal….
Bob On Sep 13, 2012, at 6:15 PM, Chuck Harris <[email protected]> wrote: > It turns out that watch timing machines are available that > sense the watch crystal both ways. The same was true in > the days of the Accutron tuning fork watch... thought the > more reliable timing machines used a loop to sense the > magnetic field of the drive coils. > > The big problem is most such watches no longer use trimmer > capacitors to adjust the timing, but rather store counter > values in a tiny bit of flash ram... absent the manufacturer's > blessing, and a bit of equipment they sell to their authorized > service centers, you probably won't be adjusting the watch's > timing constants. > > -Chuck Harris > > Bob Camp wrote: >> Hi >> >> A watch module is *very* low power. There's not much EM field running >> around. What there is relates to many things going on, not just the crystal. >> It's *much* easier to pick up the acoustic signal and use it to drive a >> counter. >> >> Bob >> >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On >> Behalf Of Azelio Boriani >> Sent: Thursday, September 13, 2012 4:45 PM >> To: Discussion of precise time and frequency measurement >> Subject: Re: [time-nuts] RE; New Wrist watch >> >> OK, listening to the 32KHz EM field, not to the acoustic 32KHz. >> >> On Thu, Sep 13, 2012 at 8:08 PM, Ron Frazier (TImeN) < >> [email protected]> wrote: >> >>> My watch is also digital, but I wanted to put a word in for my Casio. >>> It's the G-Shock MT-G, module 2638. Auto sets, auto charges, 200 M water >>> resist if I ever need it. I love it. It was around $ 100. I live in GA >>> in the USA. It sets very reliably but can only receive the signal well >>> enough in the middle of the night. It's only ever missed one or two >>> setting times. I've had it since January 2012. I don't know how it >>> handles time zone changes. I would probably have to look in the manual to >>> figure out how to tell it. >>> >>> Ron >>> >>> On 9/13/2012 12:23 PM, Bob Camp wrote: >>> >>>> Hi >>>> >>>> The WV-58A at $28 takes care of the time zone thing pretty well. It's >> also >>>> cheap enough to be a throw away if it's damaged. Since it's pure digital, >>>> it's really not going to meet the "I need a second hand" requirement... >>>> >>>> Bob >>>> >>>> -----Original Message----- >>>> From: [email protected] [mailto:[email protected]] On >>>> Behalf Of Christopher Quarksnow >>>> Sent: Wednesday, September 12, 2012 5:39 PM >>>> To: Discussion of precise time and frequency measurement >>>> Subject: Re: [time-nuts] RE; New Wrist watch >>>> >>>> There are many Wave Ceptor LCD versions such as WVM120J-1 (about $27) or >>>> WV59A-1AV (about $49) that might not have the spin issue..... >>>> >>>> Chris >>>> >>>> >>>> On Sun, Sep 9, 2012 at 4:34 PM, Robert Darlington >>>> <[email protected]>wrote: >>>> >>>> >>>> >>>>> The waveceptor's are okay but I can't wear mine much because I tend to >>>>> cross timezones a lot. The hands only run in one direction so when >>>>> going to the west, it has to spin 11 hours forward. This takes 20 >>>>> minutes. I guess it's one way to kill time on an airplane. >>>>> >>>>> -Bob >>>>> >>>>> On Sun, Sep 9, 2012 at 1:12 PM, Rich and Marcia Putz<[email protected]> >>>>> >>>>> wrote: >>>>> >>>>> >>>>>> I have a $49 Casio Wave Ceptor, white face black numerals, analog hands >>>>>> >>>>>> >>>>> including second hand, date, alarm and WWVB syncing in the middle of the >>>>> night. Only had to replace the battery once and it ticks are closer than >>>>> I >>>>> can discern when comparing to WWV @ 10or 15 Mhz. >>>>> >>>>> >>>>>> Rich, W9ENG >>>>>> >>>>>> _______________________________________________ >>>>>> time-nuts mailing list -- [email protected] >>>>>> To unsubscribe, go to >>>>>> >>>>>> >>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>>> >>>>> >>>>>> and follow the instructions there. >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> time-nuts mailing list -- [email protected] >>>>> To unsubscribe, go to >>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>>> and follow the instructions there. >>>>> >>>>> >>>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] >>>> To unsubscribe, go to >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>>> >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] >>>> To unsubscribe, go to >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>>> >>>> >>> >>> -- >>> >>> (To whom it may concern. My email address has changed. Replying to >> former >>> messages prior to 03/31/12 with my personal address will go to the wrong >>> address. Please send all personal correspondence to the new address.) >>> >>> (PS - If you email me and don't get a quick response, don't be concerned. >>> I get about 300 emails per day from alternate energy mailing lists and >>> such. I don't always see new messages very quickly. If you need a >>> reply and have not heard from me in 1 - 2 weeks, send your message again.) >>> >>> Ron Frazier >>> timekeepingdude AT techstarship.com >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
