Nice! I'm thinking about getting a Seiko Astron. My Citizen AT keeps the exact Atomic Time even all the way in Nome Alaska so I'm not really having any signal difficulties. I'm just fascinated with the technology.
I have several radio controlled watches who's accuracy is as accurate as the radio signal. I have numerous quartz watches which are way more accurate than anything that cheap has a right to be.
This watch is very accurate I have not set if for two or three months at a time and its been less than a minute off
of my purely mechanical time pieces this old grand seiko is still running well within the very stringent plus five and minus three in six positions as stated from Seiko. I have had the timing checked various times and its sometimes six seconds but most often about four. I am astonished all the time about how well it keeps time considering its age and the abuse I put it through as a younger man wearing it in the commercial kitchen in which I was working