watchOS 4.3.2 (build 15U5069a) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-06-25T17:13:14Z. The update package is 58.69 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: 57f74653e6164d75be3e7f552fb5fa78d73d4e63.zip.