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.
I’d like a smaller version of this put into a wristwatch with a radioisotope power supply, an ISO-8601 date/time readout, and a built in calculator for measuring time dilation effects with my spouse. A laser pointer would be cool too.
Accurate time is what makes Google Spanner (global SQL database) work. Hope others start implementing easy global consistency with this.
> ...enables clients of Cloud Spanner to perform consistent reads across an entire database (even across multiple Cloud regions) without blocking writes.
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?