First atomic clock wristwatch (2003)

Re:First atomic clock wristwatch (2003) by hengheng on Tuesday January 26, 2021 @03:19AM (#25913629)

It draws quite a lot of power. From what I remember, the lipo battery required for 16hrs w/ no display would be the same size as the already chunky module itself, requiring wristband integration. Better to have a quartz oven and fire up the CSAC only once per hour as a reference, still yielding one factor of 10 in precision.

All in all it's better suited for a nice pocket watch with a 10MHz out connector. Any takers at 15k$+?

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Re:First atomic clock wristwatch (2003) by Teknoman117 on Tuesday January 26, 2021 @04:03AM (#25913827)

Hah. Admittedly I didn't look up the power consumption. I came across these modules a few years ago randomly and seeing this article reminded me of them.

I wasn't seriously suggesting it's a practical answer by any means =)

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