watchOS 3.1.1 (build 14S5875b) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2016-11-15T21:08:19Z. The update package is 591.73 MB. This is a delta (partial) update that requires 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: b1c36281ab11b5a8b5e024ee0481ec7bd70a9059.zip.