I keep going back to the Casio 593 (F-91W and A158) - menga.net
RARE VINTAGE CASIO F-96W MODULE 593 JAPAN ALARM CHRONO - WORKING spare parts | eBay
Casio A158WEA User Manual / Module 593
Casio A158WA-1 Men's Vintage Metal Band Chronograph Alarm Digital Watch - Walmart.com
File:Old Casio module 593.jpg - Wikimedia Commons
41J Blog » Blog Archive » Casio F91W dimensions
Casio A-164W Module 593 Alarm Chronograph. Vintage Original - Etsy
File:Old Casio A158W back.jpg - Wikimedia Commons
Vintage Casio W-31 Stainless Steel case & 593 module. Basically a metal bodied F-91! Does anyone know more about this range? : r/casio
Casio 593 movement • Mastersintime.com
Casio W-39 Watch Module 593 - Etsy
Casio A159W. Module 593 | Vintage Watch Studio
Vintage Casio F-91W Module 593 Working | eBay
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
HOW TO RESTORE 1987's VINTAGE CASIO A158W ( MODULE 593 ) DIGITAL WATCH | WATCH RESTORATION - YouTube
CASIO F91W-1 Module 593 - YouTube
Very Rare 1990 Vintage CASIO W-31 (593) Japan H 33mm Watch - New Battery | eBay