watchOS 5.0 (build 16R5322d) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-07-17T17:11:07Z. The update package is 286.91 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: 6443b5c83672cfcd21e67d812879c753e9e2a320.zip.