Every Apple Watch SE 3 configuration on Apple's US store now reads Currently Unavailable, for delivery and for store pickup alike. MacRumors spotted it and found the same in the other countries it checked, with no explanation from Apple. Apple does not usually clear out a product's stock before its replacement exists, and the SE 3 has only been on sale since September 2025.
An Apple Watch SE 4 was not on anyone's list for Wednesday. The original SE arrived in September 2020, the SE 2 in September 2022 and the SE 3 in September 2025, so the line has never turned over in back to back years, and the two watches expected at the event are the Series 12 and the Ultra 4. It could still be a system glitch that clears on its own.