ECB-900YDB-1BJF | CASIO,ECB-900YDB-1AJF | CASIO,Amazon.co.jp: Casio ECB-900DB-1ADR Edifice Edifice Solar Chronograph Smartphone Link Model with Bluetooth Watch & Microfiber Cloth 5.1 x 5.1 inches ,ECB900DB-1A,Amazon.co.jp: Casio ECB-900DB-1ADR Edifice Edifice Solar Chronograph Smartphone Link Model with Bluetooth Watch & Microfiber Cloth 5.1 x 5.1 inches