watchOS 5.0.1 (build 16R381) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-09-27T20:08:23Z. The update package is 37.3 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: 8096800de94db45b677dd1866ed97e0f33b055ab.zip.