The butterfly watch buckle is also known as the hidden watch buckle or clasp. When the watch band is closed, only part of the butterfly clasp is visible. The buttons on the clasp are the only shown portion of the clasp. Because this buckle is near invisible, the butterfly clasp is very popular. An extra level of security is added with these buckles because the clasp itself cannot be opened until the buttons are pushed. The butterfly watch buckle attaches to the band by a tube with pins. Measuring this tube will help determine the size clasp you need. These butterfly clasps look best with a metal watch band. All watch buckles are sold separately to allow different sizes and finishes for a better fit and style option. Choose from high polished rose gold, stainless steel, yellow gold, matte black, matte gold and many more high-quality finishes.