watchOS 4.3.2 (build 15U70) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-07-09T17:07:56Z. The update package is 106.48 MB. This is a delta (partial) update that requires 4.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b3b963346a9b3fb8e9a4c723355a507157139d1d.zip.