watchOS 3.1.1 (build 14S5875b) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2016-11-15T21:08:20Z. The update package is 138.76 MB. This is a delta (partial) update that requires 3.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 210360bf2a8bcc0425f49681a863f56fd4f664fc.zip.