CERTINA DS Quartz, ca. 1990

Special Bracelet on this Watch
There is a small spring inside the clasp that will allow adjustment of the bracelet while wearing or bending the wrist. I always thought this is a great idea and was wondering why not more manufacturers do this. After I accidentially disassembled the clasp, I knew why. I took me almost 15 minutes until I had that spring under that clasp again!