watchOS 6.0 (build 17R5521e) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-07-02T18:10:23Z. The update package is 789.49 MB. This is a delta (partial) update that requires 5.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2444e144cd4ad378eb4813c73c1d9ae85cd0e105.zip.