watchOS 5.2 (build 16T5212e) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-03-04T18:11:02Z. The update package is 471.91 MB. This is a delta (partial) update that requires 5.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c70600489286c56979f18b57b4d092111230264d.zip.