Apple has officially sold out of Apple Watch stock to be delivered within the April 24 launch day timeframe, as shipping times for all models have slipped to 4-6 weeks or later less than 6 hours after pre-orders started at 12:01 AM Pacific today. Apple Watch Sport models were the first to sell out, with delivery estimates shifting to 4-6 weeks, and then June, on the Apple Online Store in the United States. The stainless steel Apple Watch retained fairly better shipping estimates after the pre-order window opened, with most models available to ship in 4-6 weeks after the first hour of availability. The 38mm Stainless Steel Apple Watch with Black Classic Buckle was the last model to maintain its original April 24th to May 8th shipping time, finally slipping to at approximately 9 AM Pacific. It appears that prospective buyers of the Apple Watch Edition will have a difficult time getting their hands on the 18-karat gold watch before summer, as shipping estimates for those models slipped to June-August almost im