SPORT RUBBER Durable rubber or new silicone watch bands for today`s sport watches made by Toscana, B.Centurini, Hirsch, Morelatto, Speidel, Hadley Roma and other famous watch attachment brands. Excellent bands for an active athletic person or a professional scuba diver. Tip: When inserting spring bar or screw into the rubber band for the first time, use a little silicone to keep it from binding.