Seiko Prospex Automatic "Turtle" SRP773 DRIVING SYSTEM Automatic with manual winding mechanism CALIBER NO. 4R36 CASE Stainless Steel BAND Stainless steel bracelet with three-fold clasp with secure lock, push button release with extender GLASS MATERIAL Hardlex Glass WATER RESISTANCE 200m Diver CASE DIAMETER 45.0mm FEATURES Screw case backScrew-down crownMagnetic resistance: 4,800 A/m High legibility The dial design has just one objective; maximum legibility, even deep in the ocean where sunlight does not penetrate. The hour markers are large, so as to allow the maximum surface area and depth for Seiko's Lumibrite coating. The hands, too, are wide and easy to read. Screw-down crown at the 4 o'clock position Greater security is achieved by positioning the screw-lock crown at the 4 o'clock position. The crown has screw-down protection to prevent it from being pulled out by any accidental operation as the water resistance function is secured only when the crown is at its normal position.
