Casio Illuminator Quartz Digital Alarm Silver-tone Bracelet 32mm Watch A168W for sale online | eBay
Casio W-39 Watch Module 593 | Etsy
Casio / G-Shock Chips | WatchUSeek Watch Forums
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
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RARE CASIO F-88W LCD WRISTWATCH 593 MODULE ALARM CHRONO WORKS NO BAND EXC | WatchCharts
RARE VINTAGE 1987 Casio F-88W Digital Watch Module 593 with New Battery - $12.00 | PicClick
VINTAGE CASIO DIGITAL LCD WATCH F99-W MODULE 593 | #511749645