It cannot be popularized because: first, there is too little demand; Secondly, tourbillon is very fragile.
At present, seagulls don't fly 1W, which is basically more than 20 thousand. Accuracy, anyway, is within ten seconds, which is in line with everyone's general expectation of Tuofei.
As for the structure. Tuofei is similar, but seagull still has its own patent, otherwise it will be sued for infringement.