watchOS 3.2.3 (build 14V5751a) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2017-06-26T17:14:41Z. The update package is 284.4 MB. This is a delta (partial) update that requires 3.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 36e6fab6e8d3f0a173f0b92bbace0b25ba2da96e.zip.