watchOS 5.2 (build 16T5225a) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-03-18T17:14:56Z. The update package is 457.74 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: 47780387e5294a000f11e31d80c808166a295be6.zip.