Regardless of the beat rate, the Miyota is much broader and probably won't fit into a gen-sized case. The stutter on the NH05 I think is by far the bigger problem than the beat rate, and I think an NH05 without rotor is about the same thickness (~4mm) but is a good 9-10mm smaller in diameter which is a really big deal for those RM cases with deceptively little space inside.
All in all, the more important thing to me is why TT is listing the RMX with a Miyota and a 17mm thickness when that doesn't at all match the red sample one that's been posted. The first photos in the dedicated thread for that are obviously a variant of the same deco from the ZF v3, yet here's what's supposed to be the same watch from the same factory yet the specs are totally different. It's just really odd and sketches me out a bit about RMX.
It's weird to me when I saw the thickness is 17mm, because all the Chinese web which sells RMX 35-02 states that the thickness is 14mm. In the video I shared in another thread, there's a guy did measure the dimension, and he got 14mm on the thickness too.
I checked with Andrew from Trusty if it's a typo or something, he said it's the dimension that factory provided to him.
Another thing which bothers me is the movement, some of the Chinese web shows that RMX use the same movement as ZF use, which is seiko, But now we have a different movement on Trusty....