Amazon.co.jp: Casio GM-S5600 Series G-Shock Metal Covered Wristwatch, Mid-Size Model, Metal Covered (Black x Pink Gold), Metal Covered (Black x Pink Gold) : Clothing, Shoes & Jewelry
Amazon.co.jp: Casio 5600/5700 Series G-Shock x Baby-G Watch Pair Watch, Black x Silver/Metal Covered, Pair Set : Clothing, Shoes & Jewelry
Amazon.co.jp: Casio G-STEEL & G-MS Series G-Shock x Baby-G Watch Pair Watch with Time Correction Function, white/gold, Pair Set : Clothing, Shoes & Jewelry