Seiko * Series: Seiko 5 Sports * Movement: Seiko 7S36 or one of the 7S36 family; the case back indicates it's an automatic movement with 23 jewels. Official 7S36 specifications include 21,600 vibrations/hour and a power reserve exceeding approximately 41 hours. * Winding: Automatic, not quartz. * Date and Day: Present at the 3 o'clock position. * Crystal: Appears to be Hardlex (mineral), common in Seiko 5 Sports models of this class. * Case and Bracelet: Stainless steel. * Dial: Black with luminous markers and hands. * Bezel: Compass Bezel, a distinctive feature of some older Seiko 5 Sports models. Models like the SKZ211K1 use the 7S36, a compass bezel, and have a diameter of approximately 43mm. * Country of Manufacture: The movement/case back shows JAPAN and MADE IN JAPAN Watch Size: 44mm Movement Type: Automatic Material: Stainless Steel Brand: Seiko Features: Water Resistant