Rumors of a second-gen Watch have been going around for a while, along with reports of possible features, such as built-in GPS and cellular connection. If the new wearable is indeed making an appearance on September 7th, it could be launched alongside the new iPhone. 9to5mac has a pretty comprehensive list of Watch variants marked as Sold Out. But you can head over to Apple's website and click around on your own to find that even those marked as "New" aren't available anymore. You'll also see that each category -- Sports, Stainless Steel, Hermes and Edition -- has several Sold Out listings. If you've been thinking of finally getting an Apple Watch, it'll definitely be wise to wait until the event is over. That way, you can be sure that you don't miss out on getting a second-gen wearable or a discount on the first.