Diff of 570016B - Riquartz

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#author("2023-11-13T23:06:13+00:00","default:admin","admin")
#author("2023-11-22T23:08:29+00:00","default:admin","admin")
Case: [[Tungsten carbide]], two piece screw on back with battery bulge, signed "Riquartz 570016B Ricoh Japan"

Dial: [[Tiger eye]] with day & date

Movement: Cal [[570]]

*Example [#g08516c2]
-Watch dated Z-74, CMOS marked "7421", quartz tube marked "32K47F", circuit marked AA4, with shock jewel
-Watch dated Z-74 for Dec 1974
--CMOS marked "7421" for 21st week 1974
--Quartz tube marked "32K47F" for Jul 1974
--Circuit marked AA4
--With shock jewel