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drewm1980

It seems you can actually buy these things for single-digit thousands of dollars!

https://www.sparkfun.com/products/14830

https://www.mouser.be/ProductDetail/Microchip-Technology/090...

That puts them in the price range of handmade swiss mechanical wristwatches.

Anyone walking around with one strapped to their wrist yet?

Richard Hoptroff was prototyping the idea of a wrist watch [1], though the company pivoted into networking equipment later on.

- [1] https://www.hodinkee.com/articles/richard-hoptroffs-atomic-w...

High power consumption though at 5 watts and even more at warmup.

The CSAC is specified for operation at < 120 mW (< 140 mW at warmup) so one could in principle build a novelty watch with it. However, a standard quartz movement with daily sync to GPS would outperform it at a thousand times lower power consumption.

Keeping it charged and synchronized would have to be part of the art project / status symbol. It would only take one rich person with a genuine interest in timekeeping technology to make this happen. Their servants could bring them a steady stream of batteries... or carry a power cord behind them like a wedding gown.

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