watchOS 6.0.1 (build 17R6605) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-09-30T17:15:41Z. The update package is 143.2 MB. This is a delta (partial) update that requires 6.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b9c706474b968553defdaa522239364c306cdb97.zip.