This is the first time I have seen it. Looks a beauty https://timeandtidewatches.com/omega-seamaster-diver-300m-chronograph-review/
I have the earlier, circa 2014, wave dialled chronograph and it’s the perfect diameter for me (albeit a little thick). I’m not sure how the 44mm would sit on my wrist given it’s going to be a thick watch. I guess I’ll have to pop into a dealer and see!