watchOS 6.1 (build 17S5068e) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2019-10-10T17:07:40Z. The update package is 261.47 MB. This is a delta (partial) update that requires 6.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f196139c95b143ce48ca5274de662349aff40086.zip.