Seiko SSC143P9

The Seiko reference SSC143P9 is a chronograph with a 42.5 mm steel case. The watch has an alarm. The case measures 11.7 mm thick, with a water-resistance rating of 100 metres. Solar-powered calibre V172 operates for approximately 6 months when fully charged. Over the dial is a Hardlex crystal; the dial has a date display. Fastening is by a three-fold clasp with push-button release; movement accuracy is plus or minus 15 seconds per month. The case has a hard coating; the lug width measures 22 mm; elapsed time is measured in increments of 1/5 second. LumiBrite appears on the hands and indices.