watchOS 4.3.2 (build 15U5062a) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-06-13T17:08:14Z. The update package is 153.29 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: 0ce797c61efd6ec4ec9e08f92b48a0ad9758c5bc.zip.