watchOS 6.0 (build 17R5521e) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2019-07-02T18:09:52Z. The update package is 674.68 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: 768f5e211b43e582e0863efa396d3bd144076193.zip.