Casio G-SHOCK GULFMASTER GWN-1000B-1BJF Watch Japan Model GWN-1000B-1B New | eBay
CASIO G-SHOCK - The Gulfmaster is definitely a favourite of ours! Get the full specs of this leviathan of a watch here www.g-shock.co.uk/product/GWN- 1000B-1BER | Facebook
G-Shock Gulfmaster GWN1000B-1B and GWN1000-9A | AZ Fine Time Blog