watchOS 6.1 (build 17S5076a) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2019-10-16T17:12:31Z. The update package is 274 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: eb59b0a503285ec741f08b418c766de9b77cf75f.zip.