watchOS 6.0 (build 17R5546f) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-07-30T17:09:55Z. The update package is 706.88 MB. This is a delta (partial) update that requires 5.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: af16f91f9e6f55b9739403cac41ff98dd45737b8.zip.