watchOS 5.1.2 (build 16S5042a) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2018-11-07T21:14:21Z. The update package is 528.94 MB. This is a delta (partial) update that requires 5.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9aed48de16ce39eb810299093176dc1b31de59a2.zip.