Diff of 570040S - Riquartz

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#author("2023-11-14T23:42:13+00:00","default:admin","admin")
#author("2023-11-22T12:26:54+00:00","default:admin","admin")
Case: Stainless steel, screw on back signed "A570040 S"

Dial: Silvered, apertures for day & date, signed "Ricoh, Riquartz"

Movement: [[570A>570]] with small quartz crystal

*Examples [#k964070a]
-Dated Z-75 for Dec 1975, currently the latest recorded watch
-Dated Z-75 for Dec 1975, one of the last recorded watches