watchOS 5.2 (build 16T5201c) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2019-02-19T18:15:56Z. The update package is 148.53 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: 05945b9a2ad67eddd227b76adb061632d659483f.zip.