watchOS 6.0.1 (build 17R605) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2019-09-30T17:15:03Z. The update package is 778.79 MB. This is a delta (partial) update that requires 5.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f1e05404632044253fb7ee2952112f669ee5492c.zip.