watchOS 5.0 (build 16R5363a) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-08-31T17:15:07Z. The update package is 291.34 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: 67089cb5fdc9ce67b4979cd414e67032ac819769.zip.