Time Flies (1926)

The short starts with a duel in the Old South wherein a man inadvertently saves one of the duelists lives for which he is given a watch Years pass and we next see the grandson impoverished and heading to the big city for work taking the watch with him His ma gives him a pigeon in case he wants to send a message back home The watch is the key to getting a fortune and a vamp and her cohort want it