I run quite a few ntp time sources at sub milli-second and generally better accuracy (at work). My watch is quite decent for drift. It is far better than I actually need for a wrist watch.
Now, $17,000 for a thing on your wrist for time telling? Apple wankery involved ... please tell me it ain't so!
Quality does not always involve a sodding huge price tag and in this particular case Apple's S&M dept took their eye off the ball and went for a trot around noddy land waving their hands and looking a bit silly.
My gosh. Wait until you discover how much you can spend on luxury watches from the "established" watchmakers. You might want to be sitting down.