The movement itself was out in May. And the photos you saw were shot in May and June, about 4 months ago. The movement was tested and a video (with comments in mandarin) was also available in June but nobody noticed it.
It has some flaws: 1. the escapement does not look gen like as the balance wheel lacks the “dots” which are in fact weights. 2. It indeed has regulators beneath the bridge which is a rather risky mod that the factory did. Such a mod is what I like about this movement and a step forward in the rep industry. I plan to do the same mod to 5167A from 3k after I knew that 3k intentionally left this part as is. 3K could have done this but gave up for a reason. 3. The color difference and the overall polishing.
The advantage is that most of its parts are interchangeable with cal3120(gen).
A guy dissected this movement to compare it with cal 3120(gen) and he made a video. Go find it and you will see what I am talking about. Hopefully others with knowledge can chime in . Not sure if the factory improved the movement in the last a few months.