Ok, this is going to sound soooooooooooooo geeky but I think it's actually cool.
The guy I sit next to at work his watch beeps on the hour every hour, I *think* it's a Seiko, I have a Rangeman 9400 obviously with atomic.
I have noticed how inaccurate non atomic watches are now, obviously mine receives a signal every night so it is literally the right time.
Few weeks ago his watch would beep on the hour and I would look down at mine and there was still 45 secs to the hour, this week his watch is beeping on the hour and I look at mine and there is still 1min 10secs until the hour.
Dunno what I'm trying to say but unintentionally seeing the results of an atomic vs a normal watch is pretty cool.