watchOS 5.2 (build 16T5225a) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2019-03-18T17:14:50Z. The update package is 60.74 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: d72bf0eaceb1aaf6fbe8e063cfaa0b827d94ea21.zip.