Casio TW-7000 TITANIUM, module 548 and was 100M water resistant.This is a very rare watch, maybe Casio's first Titanium watch and can be positioned between the Marlins/Swimmers and the later G-shock (MR-G!) watches. The watch is working fine with light and sound; the crystal has scratches but is in good condition, see photo. It has an original Casio B-512L bracelet. Worldwide shipping! In Europe shipping is GBP 10.00 Nederlandse kopers graag betaling via de bank, geen Paypal. More photo's added now.