watchOS 5.1.2 (build 16S6046) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-12-06T18:04:02Z. The update package is 77.57 MB. This is a delta (partial) update that requires 5.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 81da99d0be552b0c0d1cb78c9369ded014b1bb37.zip.