Metal Watch band bezel Strap GM-5600 GA-2100 Camouflage Stainless Steel | eBay
Amazon.co.jp: HARDCORE COLLECTION Compatible with G-SHOCK DW-5600 / GA-2100 / GA-2110 Custom Metal Case Band Replacement GMW-B5000D-1JF Tone Metal Custom, Silver : Clothing, Shoes & Jewelry
G-SHOCKのバンド、変更にアナウンス無し?GM-5600とGA-2100は脱着可能で互換性あり。 : great G-SHOCK world