watchOS 6.1 (build 17S5068e) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2019-10-10T17:07:30Z. The update package is 497.78 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: 91aa64345153e9073309e8dfff6ce37a0660d0b4.zip.