Hi Jones7 Welcome to the community,
For channel analytics, according to this article,
- The watch time % for a viewer reflects the percentage of total unique checkpoints they have watched, relative to all checkpoints available in the video.
- If you watch the whole video once (all checkpoints met), and then watch only half of it on your second attempt, you have still covered all checkpoints at least once. Your watch time remains 100%.
- Typically, if you watch the video again, even for just a second, the last watched date for you and that video will be updated to the date and time of the most recent watch.
Hope this helps, let me know if you have any questions.