watchOS 4.3.2 (build 15U70) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2018-07-09T17:07:43Z. The update package is 656.14 MB. This is a delta (partial) update that requires 3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7d1d714273ddb5df4ce5cc727b7a38f27f90ef22.zip.