There are a ton of different Hamptons styles including Carryalls and most of them in the last few years have been made for the outlets. There's no reason to be concerned if more than one style number is called a Hamptons Carryall or if it looks like other style numbers. After all a Caryall is a specific style with certain details and almost all Coach "Carryalls" are going to resemble each other. Coach also usually gives a new style number to a bag made for the current year Outlet inventory even if they sold an almost-identical bag the year before.
OK that explains it. Learnt something new - yet again
