Prototype Shanghai Diver made by Shanghai City Watch & Clock Research Centre early 80's. It's an upgrade version of SS4 with an hacking quartz calander movement. It had never launched to the market!
The bezel has been modifield from fragile plastic to metal (look like copper) and carries an SS4 alike unmarked screw-down crown.
Typical SH watch case-back with very unusal engraving.
First role: Quartz Calandar Diving S-Steel Anti-magnetic
Central: Prototype
Bottom: Shanghai City Watch & Clock Reserach Centre
The dial showed "Shiying Dian Zi" = Quartz
The bezel has been modifield from fragile plastic to metal (look like copper) and carries an SS4 alike unmarked screw-down crown.
Typical SH watch case-back with very unusal engraving.First role: Quartz Calandar Diving S-Steel Anti-magnetic
Central: Prototype
Bottom: Shanghai City Watch & Clock Reserach Centre
movement with steel cover-shell
1.5v button battery operated DSE movement
new meteal bezel with 'click' system
Concerned disscussion
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1st updated; photos of movement/bezel on 27APR09
