watchOS 6.1 (build 17S5054e) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2019-09-23T17:03:43Z. The update package is 691.52 MB. This is a delta (partial) update that requires 5.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: fcf0da8fd512bfe4eba1a627911c73cf734d73fb.zip.