Excellent condition vintage CASIO DW-310, part of the Heavy-Duty line the father of the first G-Shock.  First digital Casio to feature an incredible (for the time) 300m water resistance! All functions work, including alarm and light. Module 690 including Dual Time and countdown timer.  Original bezel and band, so there are some scuffs, please check all pictures carefully. No scratches on the dial. Presentation stand not included.

Early production run 1982 -1984, Japan made.