GW-4000-1AJFサポートページ | CASIO。Casio Riseman GW-9230BJ-1JR Initial Blue Limited - Shopping。Casio Riseman GW-9230BJ-1JR Initial Blue Limited - Shopping。カシオ G-SHOCK GW-4000-1AJF 価格比較 - 価格.com。 This watch was purchased in 2021. It works normally without any problem. I shortened its strap because my hand is small. Please consider that when you buy it.