watchOS 4.3.2 (build 15U5053b) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2018-05-30T17:06:52Z. The update package is 75.54 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: e83b5ec51fe4b7e8d1027479aed16c2c4735972f.zip.