Manufacturer : Shanghai Watch Factory 上海手表厂
Year of Production: 1966
Case Diameter :
Weight w/o strap: g
Movement Model : 611 (17 jewels)
Type : Hand Wind
Made in 1966 is the oldest collection that I have had so far. This model is A611a; the predecessors of it are A-611, followed by A611 [there is no dash between A and 611 in the second generation] and the successor is 611. This series started in 1961 and ended in 1967 during which A611a was produced between 1965 and 1966.There is detail information about A611a here.
The movement is a 17 jewels 611, a product of pre-standard movement era. The caseback is engraved with "上海手表厂” （Shanghai Watch Factory) at the top and "FANGZHEN" at the bottom. "A611a" is located below the logo.
For more shots, see here: