How about Seagull Watch 8 19-3 17? What are its advantages and disadvantages?

Seagull Flywheel Series 8 19.3 17 mechanical men's watches (see the figure below) adopt ST2505 movement, and the official sales price is 3,400 yuan. Many people mistakenly think that this watch is a round trip. In fact, the movement of ST2505 is a single return+energy display, and should not be classified as a double return. The main problem of this kind of exercise is that the calendar that flies back is easy to break down, and occasionally there is a swing problem.

Friendly reminder: Swing means that the watch will go very fast in a short time, such as a few minutes faster in a day or half a day, and the symptoms are similar to being magnetized.

I hope the answer will help you.