Seiko SGEH70

The Seiko reference SGEH70 has a 40.9 mm steel case. The case measures 8.6 mm thick, with a water-resistance rating of 100 metres. The movement is quartz calibre 7N42, which contains 1 jewel and has a battery life of approximately 60 months. The dial is covered by a sapphire crystal. LumiBrite is applied to the hands and indices. The movement has an accuracy of plus or minus 15 seconds per month. The case has a lug width of 20 mm. A three-fold clasp with a push-button release mechanism fastens the watch.