this is a very rare IwC Ingenieur SL from the late 1970s, early 1980s with a 26mm steelcase and the original gerald genta design. It comes with the great millimeter pattern dial and sought after SL signature. The dial and it´s handset still feature the original tritium lume and appear in fantastic condition. the iwc quartz caliber is running perfectly as you would expect it. The watch currently fits wrists up to a size of 17cm circumference or smaller.