SEIKO RADIOWAVE CONTROL SOLAR Seiko Solar Radio Wave Watch, Naoto Fukasawa Design S760-0AA0 The band is probably original. When I wear it, I usually wear a 17-18cm length, and while the buckle closes, it's tight enough that I hesitate to bend my wrist, so I think it's about 15cm-16cm. There are no extra links. This is a used item, sold as-is. There may be minor scratches, stains, signs of use, and age-related deterioration. Currently, it is not working. I have not had it serviced, so it might work if charged in the sun. However, I am selling it as a junk item just in case. Please understand the above and only purchase if you are able to handle it.