watchOS 6.0 (build 17R5575a) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2019-08-27T17:28:31Z. The update package is 688.11 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: 6fbb8558fc827d628be8e6b4847f99483884d71f.zip.