watchOS 5.2 (build 16T5201c) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2019-02-19T18:15:49Z. The update package is 454.81 MB. This is a delta (partial) update that requires 5.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0d5de3d58460367c67eaf55e2b7adcaaa53eb681.zip.