Under the Seiko5 label, Seiko is issuing watches with Sports on the dial. These watches all are 10 atm water resistant, are build with eye for details (bracelet with solid links, double locking clasps, robust cases). The crown-gasket is around the stem, so here is no real need for a screw down crown as long as you keep off the crown while under water.

They usually have a colorful detail, like a brightly colored second hand, a colored-detail in the dial and so on. They also have a see through case back, so you can see the automatic movement.