watchOS 6.0 (build 17R5546f) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2019-07-30T17:09:40Z. The update package is 737.65 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: ecfe0be8cd54ba7bb1fac174351a2c1cec25a705.zip.