watchOS 6.0 (build 17R5491t) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2019-06-03T19:28:40Z. The update package is 707.56 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: b8dae431fb8e2b07dc996eff472c4e46cef645e3.zip.