Cartier roadster Automatic Chronograph stainless steel watch / repair or parts

Cartier roadster Automatic stainless steel watch needs repair or for watch parts selling as is watch stem is out and the watch band pin is missing I don't know if has other issues or not I don't know much about watches but I have a large VTG watch collection I don't know what it is worth I googled some are expensive Make reasonable offer No Returns selling as is no returns