CASIO G-SHOCK - The G-SHOCK GW-B5600 with Bluetooth equipped engine. The 5000/5600 series has kept its squared-off design since its inception with the DW-5000C, while continuing to evolve. | Facebook
DW5600E-1V | Classic G-SHOCK Digital 5600 Series Watch
Casio's newest G-Shock Bluetooth watch coming to the US this summer (hands-on) - The Verge
Casio G-Shock Classic 5600 Bluetooth Mobile Link Transparent Watch DWB5600G-1
Casio G-Shock Charles Darwin Finch Solar Bluetooth Watch GWB5600CD1A3 – NAGI