watchOS 5.0 (build 16R5322d) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-07-17T17:10:50Z. The update package is 647.06 MB. This is a delta (partial) update that requires 4.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e3d6ad70d8bf75879917e78482029651811d393d.zip.