watchOS 4.3.2 (build 15U70) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-07-09T17:07:55Z. The update package is 674.24 MB. This is a delta (partial) update that requires 3.2.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cc26c73725cba8ab5cb01e9cebc127dd6040ebdf.zip.