MacRumors published a story that Apple has released the release candidate of watchOS 10.2 to registered developers.

Apple Seeds Release Candidate Version of watchOS 10.2 to Developers

Apple today seeded the release candidate version of an upcoming watchOS 10.2 update to developers for testing purposes, with the update coming a week after Apple seeded the fourth watchOS 10.2 beta.

To install the ‌watchOS 10.2‌ update, developers will need to open the Apple Watch app, go to the Software Update section under "General" in Settings, and toggle on the ‌watchOS 10‌ Developer Beta. An Apple ID linked to a developer account is required.

Apple Seeds Release Candidate Version of watchOS 10.2 to Developers