Diff of 570022 - Riquartz

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Case: Stainless steel, two piece screw on back with battery bulge

Dial: Blue Signed Riquartz DX5, day date

Or 

Fading brown signed Riquartz DX10, day [Japanese] date 

Calibre [[570]]

*Serial numbers [#a46fd52d]
-966600
--Circuit marked AB5
--IC marked 7422 for week 22 of 1974

-No number
--Dated Oct 1973
--IC marked 7334 for 34th week of 1973
--Quartz cannister unmarked
--Day wheel in Japanese