The Seiko SSC446 is a men's solar-powered chronograph watch featuring a two-tone stainless steel case and bracelet with gold-tone and silver-tone accents. The round case measures 43.5mm in diameter and is fitted with a black bezel and a white sunray dial accented by gold-tone stick indices and three subdials. The movement is Seiko's Caliber V175 solar quartz, which converts both natural and artificial light into energy to power the watch indefinitely with regular light exposure.

The chronograph function measures elapsed time up to 60 minutes in 1/5-second increments and includes a split-time measurement function; the stopwatch stops automatically when it reaches 60 minutes. Additional features include a 24-hour indicator subdial, a date calendar window, and LumiBrite luminescent hands and markers for low-light visibility. Once fully charged, the power reserve lasts approximately 6 months in complete darkness. The caseback is screwdown for added protection, and the watch is water-resistant to 10 bar (100 meters / 330 feet), making it suitable for swimming and recreational water activities.