This is a very unique wristwatch. The face reflects the Amino Acid Wheel and genetic codes and make up. It starts in the center with the four basic molecules that are part of the DNA sequence. Rare Roche medical supply company employee watch. It is in great used condition, very light markings on the bezel. Stainless steel mesh band The watch face is 1 1/8" in diameter. Excellent gift for Biology enthusiasts. Needs Battery