Specifications︰ 29mm(character:5mm),Alarm,front control.
functions:hour,day,month,minute,second,12/24 Hour timing system selectable.
outer size:29mm(diameter)X5mm(depth)
windows size:9mm(H)X19mm(W)
Optional Object:For plastic watch casing user,a metal side contact plate can
be added to the module.

front/back/side control availabel.