watchOS 4.3.2 (build 15U6070) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-07-09T17:08:12Z. The update package is 62.29 MB. This is a delta (partial) update that requires 4.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: aae90ae4588668a9390a84e7d3741abde7d8d7b7.zip.