watchOS 3.0 (build 14S5290d) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2016-07-18T16:53:02Z. The update package is 504.79 MB. This is a delta (partial) update that requires 2.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 3da20862462f73731fe7cc0441bbe8648e766840.zip.