Popular Three-Eyed 6900 Series! Stylish and calm yellow! Smaller than the GDX69 series! Convenient solar radio wave function! Limited-time listing! Purchased new at a watch store several years ago, but never used. However, the instruction manual and box are missing, so I'm listing it as "Like New." You can find the instruction manual on the Casio website by specifying the module number 3179 engraved on the back cover! No aging deterioration, extremely beautiful condition! The watch itself will be shipped via Yu-Packet Post, and changes are not possible! Even during transaction communication, I will unfortunately prioritize the first person to purchase! Thank you for your understanding... Shipping may take a few days due to my circumstances! I apologize! Usually, I will ship within 2-3 days! Thank you!