watchOS 6.1 (build 17S5068e) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2019-10-10T17:07:38Z. The update package is 499.19 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: c172d320ee514a804275158a93dea9fd97cf178c.zip.