When considering modern/new Chinese built watches, this post at the very wonderful Chinese Watch Industry Wiki is a very good overview of what to expect in the way of customer service and build quality.
When it comes to vintage Chinese wristwatches, however, I’m not aware of any comprehensive (as in “all possible brands”) quality level list (at the peak, there were reportedly over 300 factories/brands in China), but this should help:
1) My experience after purchasing almost 100 vintage Chinese watches is that I now expect a generally high level of accuracy. Sure, some may be a few more seconds out a day than others but I can’t think of one “normally running” vintage example of mine that I’d expect to correct more than once (and then only slightly) during a period of a few days or a week. And, just for information: so far only 4 of my vintage Chinese watch purchases didn’t run or ran very badly on arrival. (Your mileage may vary) That’s not bad considering that almost all were used watches, 30 to 50 years old and shipped in small packages across an ocean. The watches very well may have run perfectly when they left China.
2) Vintage Chinese mechanical watches were produced in four descending “grades” which were reflected in prices. Grades 1 and 2 are very good in my experience. My personal favourite Chinese watches (ZhuFeng and Taihang) are actually “Grade 2″ watches according to the lists below but I think they’re stunning looking and wonderfully built…I have no idea why they’re Grade 2 and not 1 
And there’s a cool unexpected treat in 4th grade watches: 4th grade “standard movement” watches aren’t finished well at at all (although they usually work)…but the 4th grade SN-2 movement (found in Zhongshan brand watches, for example) is almost always killer accurate and generally has a power reserve of over 50 hours 
Just a note: according to Soviet (a moderator at WUS’s Chinese Mechanical Watches forum, the old water resistance standard for Grade 1 vintage Chinese watches [i] when new [/i] was (loosely translated): “[i]there should not be water inside if the watch was put under 1 meter deep water for 1 minute,[/i]” so not built for diving or showering, and best to take it off if you’re washing dishes and so on. I’ve always looked at like “time enough to pick yourself back outta the puddle or creek”
The wonderful list below (translated by WUS member “Seele“ from this Chinese language post) notes a large number of vintage Chinese watch brands by Grade, Place of Manufacture, Brand, Specs and 1983 pricing.
Also: unless and until you’ve developed a relationship with a seller on Ebay or on Taobao, my strong advice is to only purchase from sellers who show clear photographs of the crown, caseback and movement as well as the dial, or who will provide them if asked. That’s not to say that watches from sellers who don’t or won’t provide these photos are somehow wrong or fake, but provided photographs clearly do three things:
- They show that the seller is taking time and providing details with the listings.
- They give you evidence you can use if the seller doesn’t deliver what was promised. And,
- (especially important for “collection-intended” items) They show that the movement, crown, dial and caseback all make sense together, which is to say that all items are likely original to the piece and not just assembled piece by piece from a few watches.
An aside: although I have never—not even once—had a watch not be exactly what was shown in a Taobao listing, I save the html page (save as html/complete) for all watches I buy. That gives me a photo and original seller’s text record of what I purchased, but it also provides provenance for the item which helps protect collection value. I name the saved page as watchname_datepurchased_seller.
Also, I don’t ever mind emails asking about specific pieces as long as you understand I give opinions and not advice; the final decision is always yours
Table 2-11-77
January 1983 price list of domestically produced mechanical watches
Unit: RMB / unit
Grade
Place of manufacture
Brand
Specifications
Retail price
List price
After price adjustment
Grade 1
Shanghai
Shanghai 上海/上海
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
100
90
Grade 1
Shanghai
Chunlei 春蕾/春蕾
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
100
90
Grade 1
Shanghai
Baoshihua 宝石花/寶石花
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
90
80
Grade 1
Shanghai
Shanghai 上海/上海
17-jewel, all steel, shockproof, waterproof, antimagnetic, woman’s watch
90
80
Grade 1
Shanghai
Diamond/Zuan Shi 钻石/鑽石
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
90
75
Grade 1
Tianjin
Sea-Gull/Haiou 海鸥/海鷗
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
90
90
Grade 1
Tianjin
Easterly Wind/Dongfeng 东风/東風
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
90
80
Grade 1
Beijing
Double Rhomb/Shaungling 双菱/雙菱
20-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
85
75
Grade 1
Xian
Yan’an 延安/延安
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
75
70
Grade 1
Xian
Butterfly 蝴蝶/蝴蝶
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
75
70
Grade 1
Guangzhou
Guangzhou 广州/廣州
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
75
70
Grade 1
Guangzhou
Bright Pearl 明珠/明珠
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
75
70
Grade 1
Dandong
Peacock/Kongque 孔雀/孔雀
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
75
70
Grade 1
Chongqing
Mountain City 山城/山城
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
70
70
Grade 2
Qingdao
Jinmao 金锚/金錨
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
70
60
Grade 2
Qingdao
Jinmao 金锚/金錨
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
70
60
Grade 2
Tianjin
Lanhua 兰花/蘭花
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
67
60
Grade 2
Tianjin
Mt Everest/Zhufeng 珠峰/珠峰
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
65
60
Grade 2
Beijing
Linhua 菱花/菱花
20-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
70
60
Grade 2
Beijing
Three Rings 三环/三環
20-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
60
Grade 2
Suzhou
Suzhou 苏州/蘇州
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
65
55
Grade 2
Xian
Panda/Xiongmao 熊猫/熊貓
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
55
Grade 2
Dandong
MeiMei 美美/美美
17-jewel, all steel, shockproof, waterproof, antimagnetic, woman’s watch
55
55
Grade 2
Dalian
Pearl 珍珠/珍珠
17-jewel, all steel, shockproof, waterproof, antimagnetic, watch for the blind
65
60
Grade 2
Dalian
Pearl 珍珠/珍珠
17-jewel, all steel, shockproof, waterproof, antimagnetic, woman’s watch
60
55
Grade 2
Chongqing
Sanhua 山花/山花
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
55
Grade 2
Yantai
Polaris 北极星/北極星
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
55
Grade 2
Qingdao
Rose 玫瑰/玫瑰
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
55
Grade 2
Liaocheng
Taishan 泰山/泰山
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
55
Grade 2
Shenyang
Hundred Flowers 百花/百花
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
55
55
Grade 3
Shanghai
Jinji 金鸡/金雞
19-jewel, all steel, shockproof, man’s watch
60
55
Grade 3
Shanghai
Silver Flower 银花/銀花
17-jewel, all steel, shockproof, man’s watch
54
50
Grade 3
Shanghai
Pride of Shanghai 沪光/滬光
17-jewel, all steel, shockproof, man’s watch
54
50
Grade 3
Shanghai
Silver Cup/Yinbei 银杯/銀杯
17-jewel, all steel, shockproof, man’s watch
54
50
Grade 3
Tienjin
Tienjin 天津/天津
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Tienjin
Welcome Springtime 迎春/迎春
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Tienjin
Milan 米兰/米蘭
17-jewel, all steel, shockproof, man’s watch
45
50
Grade 3
Beijing
Yanshan 燕山/燕山
20-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Xian
Magnolia 玉兰/玉藺
19-jewel, all steel, shockproof, man’s watch
55
50
Grade 3
Guangzhou
Yangchen 羊城/羊城
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Dandong
Spring Orchid/Chunlan 春兰/春蘭
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Shenyang
Spring Flower/Chunhua春花/春花
19-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Dalian
Double Fish (or Pisces) 双鱼/雙魚
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Dandong
Green Clouds 青云/青雲
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Chongqing
Kunlun 昆仑/崑崙
17-jewel, all steel, shockproof, man’s watch
45
50
Grade 3
Chongqing
Flower Creek 花溪/花溪
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Chongqing
Precious Laws 宝律/寶律
17-jewel, all steel, shockproof, man’s watch
55
50
Grade 3
Jinan
Spring Swallow/Chunyan 春燕/春燕
19-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Qingdao
Double Happiness双喜/雙喜
19-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Yantai
Sprout 萌芽/萌芽
19-jewel, all steel, shockproof, man’s watch
45
50
Grade 3
Suzhou
Multiple Rhombs 多菱/多菱
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Xian
Antelope 羚羊/羚羊
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Jieyang
Sunflower/Kuihua 葵花/葵花
11-jewel, all steel, shockproof, man’s watch
83
35
Grade 3
Dandong
Dragon & Phoenix 龙凤/龍鳳
17-jewel, half steel, simplified packaging watch with date
83
35
Grade 4
Nanjing
Zhongshan 钟山/鐘山
9-jewel, all steel, shockproof, man’s watch
40
35
Grade 4
Nanjing
Zhongshan 钟山/鐘山
9-jewel, all steel, man’s watch
30
30
Grade 4
Yangzhou
Viburnum 琼花/瓊花
17-jewel, all steel, simplified packaging, shockproof, man’s watch
45
40
Table 2-11-78
March 1983 price list of domestically produced mechanical watches
Unit: RMB / unit
Grade
Place of manufacture
Brand
Specifications
List price
After price adjustment
Grade 1
Shijiazhuang
Stone Pearl 石珠/石珠
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
-
70
Grade 2
Harbin
Northern 北方/北方
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
55
55
Grade 2
Changchun
Plum Blossom/Meihua 梅花/梅花
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
55
55
Grade 2
Hangzhou
West Lake/Xihu 西湖/西湖
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
55
Grade 2
Nanchang
Lushan 庐山/廬山
19-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
55
55
Grade 2
Hefei
Red Star 红星/紅星
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
55
55
Grade 2
Wuhan
Wuhan 武汉/武漢
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
55
55
Grade 2
Shijiazhuang
Taihang 太行/太行
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
55
Grade 2
Shijiazhuang
Red Lotus 红莲/紅蓮
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
55
Grade 2
Kunming
Spring City 春城/春城
17-jewel, all steel, shockproof, waterproof, antimagnetic, man’s watch
60
60
Grade 3
Harbin
Skylark 云雀/雲雀
17-jewel, all steel, shockproof, man’s watch
49
50
Grade 3
Changchun
Ginseng Flower 参花/參花
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Dalian
Dalian 大连/大連
17-jewel, all steel, shockproof, man’s watch
55
50 (added later)
Grade 3
Shenyang
Precious Dragon 宝龙/寶龍
19-jewel, all steel, shockproof, man’s watch
-
60
Grade 3
Jiangxi
波阳/波陽
17-jewel, all steel, shockproof, man’s watch
-
50
Grade 3
Wuhan
Starfire 星火/星火
17-jewel, all steel, shockproof, man’s watch
-
50
Grade 3
Nanning
Guihua 桂花/桂花
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Luoyang
Peony 牡丹/牡丹
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Kunming
云雀/雲雀
17-jewel, all steel, shockproof, man’s watch
50
50
Grade 3
Shijiazhuang
Three Flowers三花/三花
17-jewel, all steel, shockproof, man’s watch
-
50
Grade 3
Shijiazhuang
Zhauzhou Bridge 赵州桥/趙州橋
17-jewel, all steel, shockproof, man’s watch
-
50
Grade 3
Shijiazhuang
Three Fishes三鱼/三魚
17-jewel, all steel, shockproof, man’s watch
-
50
Grade 3
Zhengzhou
Yellow River 黄河/黃河
16-jewel, simplified packaging, shockproof, man’s watch
40
36