watchOS 5.2 (build 16T5212e) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2019-03-04T18:10:52Z. The update package is 439.24 MB. This is a delta (partial) update that requires 5.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1dacf824409a2172bd8b133bd42916e1f68e6c97.zip.