Try Watchbands dot com. They offer many band clasps as a separate item on some models without having to buy the whole band if it is just the clasp you after. If you do not see it write them and ask about it. They can order just about anything that they do not stock. If you do not know the part number then you need to know the style of watch it was available on and search for it by visually trying to match it with the pictures on their site.