This is a rare Nepro early quartz watch. Swiss made. All solid stainless steel case. In very good condition. Protective film is still on the back cover. New battery fitted, seems to be working fine although the displayed digits are somewhat pale. The Solid State Watch was designed to be the simplest digital watch ever. No buttons, no functions, no light; no way to set or adjust the time either. An interesting idea. Only not the best one I?d say. This makes this timepiece rare and collectable. Measures 26.5 mm.