watchOS 5.2 (build 16T5225a) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2019-03-18T17:13:37Z. The update package is 141.42 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: e06c61a19484228aea9ad936cdb59ec7cc55a388.zip.