| Specifications︰ | 5 functions,side control
functions:Hour,Day,Month,Minute,Second.
Outer size:23mm(Diameter)X5mm(Depth)
Windows size:7mm(H)x14mm(W)
Optional Object:For plastic watch casing user,ametal side contact plate must be
added to the module.
front/back/side control available.
also have diameter 29mm=sm-138
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