Seiko 5 Automatic White Dial SNKL84 SNKL84K1 SNKL84K Men's Watch A revamped version of a Seiko model that has been around for half a century! A great idea forged into a beautiful, solid and reliable unit, capable of running for nearly two days on a fully wound mainspring. It’s comfortable enough to wear it to bed and it will still be running. Your moving arms through the day will wind it up again!