watchOS 5.2 (build 16T5225a) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-03-18T17:15:02Z. The update package is 168.77 MB. This is a delta (partial) update that requires 5.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 13ca6e89f7a45f9e5fd873d7b46f0055ec87f3c3.zip.