watchOS 4.3.2 (build 15U5062a) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2018-06-13T17:08:01Z. The update package is 61.06 MB. This is a delta (partial) update that requires 4.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 400667b12f1a06848ece2dbe14a1ec0a9c4f699d.zip.