watchOS 4.3.2 (build 15U6070) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-07-09T17:08:13Z. The update package is 50.9 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: 0e2b5758b606d47b716f4611de1c9bebf43b7645.zip.