The Seiko 5 Sports Automatic 21 Jewels SNK615 SNK615K1 SNK615K Stainless Steel Men's Watch is one of the most sought-after timepieces in this successful collection. This Seiko men's watch is equipped with a high-quality automatic movement and a timeless design that can withstand the rigors of vigorous wear. This Seiko 5 Sports Automatic watch has a diameter of 37 millimeters and a durable stainless steel band with a deployment closure. In addition, it has a blue dial with luminescent hands and hour indicators. The watch is powered by a Seiko 21-jewel automatic mechanism, which can be viewed through the watch's see-through case back.