Keep tying until you reach the other buckle, then you can trim off the excess cord with scissors. Take your torch lighter and melt the ends and press them so they attach to the surrounding cord. *Be careful not to burn yourself on the molten cord, you may use superglue instead of a lighter if you prefer.
You can make the alternate half-hitch without the watch for use as a
paracord bracelet, and on a larger scale as a dog or cat collar. You
may also use two colors of paracord. If using two colors, instead of
one 10 foot piece of paracord, use 5 feet of each color and melt or sew
the two ends together and go from there.