20 micron ( takle lawan kk125-40 micron bersih berkilat )
DataDm= 27.9mm, H= 3.85mm17 jewelsf = 19800 A/hpower reserve 48h
Remarks1967-1973
family:600: Reed's regulator601: excenter regulator602: chronometer610: Reed's regulator, date611: excenter regulator, date613: quickset date