There were about 50 to 60 variation on a 581 dial during their production. Here are some of them.
The rare dial are
no.1, 12 numbers dial - from 1 to 12 shows on the dial (which I don't have)
no.2, print Shanghai Logo dial - Logo on black printing only
no.3, Luminous dial - with luminescent dot on each hour marker
no.4, Black and white dial(panda)
no.5, White dial
no.6, 2468 dial - with 2,4,6,8,10,12 marker on dial
no.7, Black dial
no.8, Red printing "China Shanghai, 17 jewels"dial
no.9, 3,6,9,12 dial
no.10, Texture dial
