watchOS 3.0 (build 14S5315a) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2016-08-09T16:45:51Z. The update package is 156.4 MB. This is a delta (partial) update that requires 3.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1e1e2ac3ab97f246073d260a1dce9437974f8f31.zip.