watchOS 5.2 (build 16T6225) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-03-27T22:04:11Z. The update package is 171.62 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: 21b7fcd2842c9ff40181a3d8832ff8cc94de1c59.zip.