Seiko King Seiko

The Seiko King Seiko, reference SJE121J1, has a 39.4 mm steel case. This is a limited edition. The case is 9.9 mm thick, with a lug-to-lug measurement of 43.6 mm and a water-resistance rating of 50 metres. Self-winding calibre 6L35 contains 26 jewels and has a power reserve of approximately 45 hours. The dial is covered by a box-shaped sapphire crystal with an anti-reflective coating on the inner surface. The clasp has a butterfly construction with push-button release; movement accuracy is plus 15 to minus 10 seconds per day. Magnetic resistance is 4,800 A/m; the lug width measures 19 mm. The dial has a date display.