watchOS 4.3.2 (build 15U5069a) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2018-06-25T17:13:23Z. The update package is 69.31 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: c09e3cfb0635517c785b218b3cdf445cfb7b724d.zip.