What is the difference between a Dutch Pot (Dutchie) and a Potjie?
I cannot speak for the Caribbean version but a traditional South African Potjie is more like a cauldron that a pot. It has three legs so as to be able to stand on its own.

Conventional wisdom dictates that you would not use a potjie in an oven seeing as that hurts the pot. Another differences is in the size. You get the standard number 3 Potjie that is the most common and then also the number two pots and the number one.

The number one pot is truly fantastic to use.