I have a Girard Perregaux Sea Hawk, in stainless that has a two piece winding stem for a waterproof case that is missing the crown and the second part of the winding stem. I can easily enough get a crown but I desperately need the other part. I've been looking everywhere. I have boxes of parts and nothing. Anyone got a lead on this? I've got a perfectly good (and beautiful looking) Girard that I can't even wear because of this.