Replaced the 394 module in my vintage MD-700 to bring it back to life. A bit small by modern standards, but a common men's size in the past. : r/ casio
Latest thrift store find! 394 Md-771 : r/casio
Vintage 1988 Casio MD-501 Submariner 100M Diver Watch, Made in Japan, Module 394 | WatchCharts Marketplace