watchOS 6.1 (build 17S5054e) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2019-09-23T17:03:36Z. The update package is 688.94 MB. This is a delta (partial) update that requires 5.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ac3adca8122d05295532f0c566ea8aa9573487da.zip.