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Vintage 1987 Casio A159W Digital Alarm Chrono Watch - Made in Japan, Module 593 | WatchCharts
Vintage Casio W-31 Stainless Steel case & 593 module. Basically a metal bodied F-91! Does anyone know more about this range? : r/casio
41J Blog » Blog Archive » Casio F91W dimensions
Found out what some of the solder points on the module 593 are for. Those three that are marked are for timing adjust based on that table. This picture is from a
Casio W-39 Watch Module 593 - Etsy
Casio A158WA-1 Men's Vintage Metal Band Chronograph Alarm Digital Watch - Walmart.com
CASIO A159W MODULE 593 Alarm Digital Chrono Vintage Men's Watch For Parts USM187 $35.00 - PicClick
HOW TO RESTORE 1987's VINTAGE CASIO A158W ( MODULE 593 ) DIGITAL WATCH | WATCH RESTORATION - YouTube