watchOS 6.1.1 (build 17S5433b) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2019-11-05T18:17:42Z. The update package is 521.24 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: fc78d981ffd83b1b6d2cca4d6c15de6b8ba40543.zip.