watchOS 5.3.2 (build 16U611) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2019-09-26T17:09:07Z. The update package is 832 MB. This is a delta (partial) update that requires 4.2.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 278a89447707ece9c4ac9d2f98042714098c0070.zip.