watchOS 5.0 (build 16R6364) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-09-12T19:18:22Z. The update package is 492.56 MB. This is a delta (partial) update that requires 5.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a7ef5fe8194c7791d9819e9f135a73c9a785cc81.zip.