watchOS 6.1 (build 17S5068e) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-10-10T17:08:01Z. The update package is 744.6 MB. This is a delta (partial) update that requires 5.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 50b5f194a8e64739c656484ff6852500199c2b2b.zip.