I found this textured dial Zhongshan a couple of days ago. Now I think I have 15 variations of dials. This Zhongshan is in excellent condition with an earlier non-shock proof movement. Like Shanghai A581s, many early Zhongshan watches are found defective due to this non-shock proof movement.
There are other versions of this SN movement, 5 jewels, 11 jewels, 15 jewels and 16 jewels.