Just bought the GWM 5610U-1C. It was a tough decision choosing between the DW5600 and this, ended up choosing this because the atomic time keeping is cool.
However, I’m a tad annoyed that the time doesn’t perfectly match with time.gov and time.is since the atomic sync doesn’t account for time propagation, so there’s like a fraction of a second delay that’s noticeable. Other than that, the watch is fantastic and has most features I would want. (I wish it had barometer and altimeter stuff, maybe even compass, and dive rated so I can press buttons underwater)
For it to be cool. I would like to know that my watch is as accurate as can be. Also, I feel like having it transmit wouldn’t take too much effort. I could be completely wrong on that, it could be really difficult maybe that’s why they didn’t do it.