CASIO G-SHOCK PROTREK Genuine Belt Fixed Ring DW-8800 GL-7200 PRG-50 PAW-1100
([This product is a genuine Casio product and is a regular product in Japan. ]. It can also be used with PRO-TREK, Baby-G, and other Casio products if the size is compatible.). ・GW-3000BB・GW-3500・GW-4000.