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.
But they basically serve as jewelry.
The problem with the Apple Watch is it tried to be that, but it has absolutely no premium value at all.
Which is unsurprising considering you can get the same brand, same look, etc with a little less gold for 1/200th the price.
Also, it doesn’t help that there is no handcrafted precision work involved with the Apple Watch. It flowed out of the same Chinese assembly line the other $200 Apple Watches did.