watchOS 6.0 (build 17R575) is an official Apple over-the-air update for the Apple Watch Series 5 (40mm, LTE), released on 2019-09-11T18:38:10Z. The update package is 1.41 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c696d4ebfbcdd365d3e79fcdfe2aab6ba0ab2f6c.zip.