i have Luminox watch. the factory pins are spring loaded on one side only, the Paylak spring bar remover didn't quite work very well... in fact, it pretty much tore-up the lip thing that it's designed to compress to allow the pin to free itself from the hole where it "sits". i'm no engineer, but i think the "v" shaped end (designed to release the pin(s)) is a bit too thick (in my judgment), and as a consequence, too "beefy" for intricate work on a $400+ watch. after much fuss, i finally used needle nosed pliers and simply pulled the pins out with force (thus, trashing the pins which had to be replaced, which, in turn, seems to render the product useless). otherwise, it's sturdy, well built, etc. but could use a "re-design" to accommodate the tight area involved w/ its application). on the plus side, seller was reliable/ good nonetheless - i'd give them 5/5 stars.