Seiko Essential Time wristwatch, steel, SUR459P1
White-Dial Seiko Essential Time Watch with Steel Bracelet and Clear Arabic Numerals
The white dial has large black Arabic numerals 1–12, and there is a date window at three o'clock. The indexes and hands are luminous, so you can read the time in dim light too. The round steel case is 40 mm wide and 8 mm thick, with a mineral crystal on top. The bracelet, made of the same steel, is 20 mm wide and fits a wrist circumference of 140–200 mm.
The quartz movement is battery-powered. Water resistance of 100 m / 10 atm is enough for swimming, water sports, snorkeling and free diving, but not for scuba diving. In 1969, Seiko launched the Quartz Astron, the world's first mass-produced quartz watch.
















