GW-7900B. I've owned 5 G-Shocks, and this one is my favorite so far. Multiband 6, countdown timer, solar, moon phase, high tide, world time, stop watch, 5 alarms. Easy to read in,Casio G-Shock Men's Tactical Shoreman Digital Watch, Black Silicone Strap, Quartz Movement, Water Resistant - GW-7900B-1 - Walmart.com,Casio G-Shock GW-7900B-1ER Watch Review,GW7900-1 | Digital Black Men's Watch G-SHOCK | CASIO