Ah, found it - it is in the email Apple sent! Right above where you can click "Track Shipment":
Shipped: Delivers May 12, 2015 by Standard Shipping
My email doesn't have an ETA. There is nothing above "track shipment" and have looked all over email. My tracking number still doesn't show up on the UPS web site.
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So, what's the first sign that your watch is on its way -- an email shipping notification, the credit card charge, or other...?
For me, credit card charge was first, then my order changed to "preparing to ship" 2 hours later. Then a day later (today) I got my email with shipping confirmation and tracking number.
