Seiko SSB263

The Seiko reference SSB263 is a chronograph with a 44 mm steel case. The case carries a water-resistance rating of 100 metres. The movement is quartz calibre 8T67, which has a battery life of approximately 36 months. The dial is covered by a Hardlex crystal. The dial has a date display and a tachymeter; the watch has a leather strap. Movement accuracy is plus or minus 15 seconds per month. The lug width measures 22 mm; elapsed time is measured in increments of 1/5 second. LumiBrite is applied to the hands and indices.