Solar-powered digital wristwatch with smartphone link (Bluetooth function), GA-B2100-1AJF, in a stylish black design. The outer and inner boxes have some damage. - G-Shock - Model Name: GA-B2100-1AJF - Bluetooth Function: Yes - Battery: Solar charging - Color: Black - Digital Display: Yes - Band Material: Resin - Buckle Type: Stainless steel The band is unused and clean because it was changed immediately after purchase. The bezel shows signs of use. Please refer to the photos for details.