watchOS 5.2 (build 16T5201c) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-02-19T18:16:01Z. The update package is 457.85 MB. This is a delta (partial) update that requires 5.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 12f665b82cb19533b455b5b04c8e94cdabc5f3a2.zip.