We will ship via Kuroneko Yamato Takkyubin within 24 hours of purchase. The GM-2100 is a model nicknamed "CasiOak" due to its octagonal shape. The metal bezel gives it a luxurious feel. The watch originally came with a resin band, but it has been changed to a metal band, making it a full-metal specification. The original resin band will also be included, so you can enjoy either band you prefer. The metal band is currently adjusted to about 17-17.5cm. Spare links are also included. The watch has been used very little, and both the main body and band are in beautiful condition. Please enlarge the images and examine them carefully. We cannot respond to claims made after purchase. A glass film has been applied to the crystal. Thank you.