watchOS 5.2 (build 16T225) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-03-27T22:04:04Z. The update package is 865.01 MB. This is a delta (partial) update that requires 4.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8a64597caa3bcf2f72592be37026124fed0daa7c.zip.