watchOS 3.2.3 (build 14V5734a) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2017-05-30T16:59:00Z. The update package is 25.5 MB. This is a delta (partial) update that requires 3.2.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4b0783862398f7fb91c97661a76799bd811cbdf0.zip.