watchOS 6.0 (build 17R575) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-09-11T18:35:20Z. The update package is 1.06 GB. This is a delta (partial) update that requires 4.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5b741fc889c3c6eb0db6d8180433a7576e0243d4.zip.