watchOS 6.0 (build 17R575) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2019-09-11T18:35:42Z. The update package is 817.35 MB. This is a delta (partial) update that requires 5.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d4886a5c451ffba92d161a953373860e1fa74688.zip.