Seiko 5 Sports Collection. A tribute to Seiko's iconic “Time Sonar” of the 1970s, this exceptional watch features a distinctive translucent turquoise dial offering a view of the day-date disk. Framed by a bi-color uni-directional rotating bezel, the dial also features bold luminous hands and markers, and a contrasting seconds hand accent. Providing automatic technology that you control with every movement, this dynamic timepiece is powered by a 24-jewel movement that beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 41 hours and manual winding capability, visible through the screwdown see-through caseback. Crafted of stainless steel with a locking tri-fold push button release clasp. 10 bar, 100M Water Resistant