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Old 24 July 2009, 06:39 AM   #1
cody p
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footprint in history:picture.jpg
the most accurate wristwatch (self-contained time keeping) ever. +/- 3 secs per year. 1975.
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Old 24 July 2009, 06:48 AM   #2
Goodwatch
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footprint in history:Attachment 77848
the most accurate wristwatch (self-contained time keeping) ever. +/- 3 secs per year. 1975.
That's what I mean! You've got the picture. Now can you name some others? I'm aiming at 10 (ten) watches
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Old 1 August 2009, 04:33 AM   #3
cody p
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footprint in history:Attachment 77848
the most accurate wristwatch (self-contained time keeping) ever. +/- 3 secs per year. 1975.
now, i'm not so sure about this one, as Paddy had a recent post with info that there was a grand seiko quartz rated to 2 seconds a year.
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Old 1 August 2009, 05:41 PM   #4
C. Davidson
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now, i'm not so sure about this one, as Paddy had a recent post with info that there was a grand seiko quartz rated to 2 seconds a year.
Another one to consider, the Omega Megaquartz 2400 Marine Chronometer.

Link to Omega Website

Link to Bill Sohne of Timezone

Quote from Omega:, A Journey Through Time, 2007:

"The [Omega] Megaquartz 2400, indisputably the most accurate and the most technologically advanced wristwatch in the world*, ... Its unmatched precision of one second a month is around ten times greater than that of an ordinary quartz watch. ... on version, the calibre 1511, [earned] the title of Marine Chronometer from the Astronomic and Chronometric Observatory of Neuchatel - a unique award. After 63 days of rigorous testing, the mean variation rate was no more than 2/1000th of a second per day, or 0.73 seconds per year!

*A decade later, thermo-compensated quartz calibres started to achieve similar results. However, as of 2007, no wristwatch other than the Omega Megaquarz in calibres 1511 and 1516 has yet been able to obtain the prestigiuos title of Marine Chronometer.
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