Seiko SSB377

The Seiko reference SSB377 is a chronograph with a 41.5 mm steel case. The case is 12.1 mm thick, with a lug-to-lug measurement of 46.5 mm and a water-resistance rating of 100 metres. Quartz calibre 8T67 has a battery life of approximately 36 months. The dial is covered by a Hardlex crystal; the dial has a date display. 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. The watch has a three-fold clasp with push-button release.