watchOS 6.0 (build 17R5566a) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2019-08-15T17:16:50Z. The update package is 687.7 MB. This is a delta (partial) update that requires 5.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c0e3c3416cdd90194d94423dfa09442c3e2340f3.zip.