You are viewing a great 1960's wrist watch from The Peam Machine. The watch cases measures 1" by 1 1/8". The dial changes colors as the sweep second hand rotates around the dial. The watch is stem set and wound. It is a 17 jewel movement. On the back stainless cover reads in Roman numerals the date 1969-70. The watch retains the original strap of white lizard. It is 7 1/2" (wearable) length. The watch winds, sets, runs , keeps time ; and changes color. Groovy!