A couple of watches from Shanghai – first is a Huangguan (crown).
Kevin Ma has a couple at chinesewristwatch.com. He says they were manufactured by Shanghai Wristwatch Factory. One of the lists of brand names I found says the same thing, but I’ve never seen any factory name on a Huangguan brand watch.
Inside is a CSZ tongji from Changshu. I’ve seen Huangguans with other movements too, but CSZ is the one I’ve seen most often.
Juhua (chrysanthemum) brand watches are not uncommon. There is some discussion of the brand in another thread.
The crown is unsigned. Juhuas have movements from a variety of origins. This one, like the Huangguan, has a CSZ tongji.