watchOS 3.1 (build 14S464) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2016-10-04T17:25:22Z. The update package is 45.21 MB. This is a delta (partial) update that requires 3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: eeb71e24367b6367b1bad17789d4968156a3c125.zip.