Re my Seiko Divers SKA371. I have lost the very small collar or sleeve that goes around the pin in the bracelet links to lock it in. I imagine these are easily lost when a link is removed so I though it would be easily replaced. I have tried to source a replacement but the AD will only supply a complete link or a full bracelet. Does anyone know if I can go somewhere to get just the collar? Otherwise is there anyone who has a small wrist who has a link with a complete pin for sale? I am also willing to buy a complete bracelet if anyone has one to get rid of? Thanks everyone.