SEIKO SRPJ45

 Caliber 4R36 Automatic Movement: Automatic with manual winding, \~41 hr power reserve, 24 jewels, stop-second & day/date display
 Stainless-Steel Case: 42.5 mm diameter × 13.4 mm thickness, 46 mm lug-to-lug, 22 mm lug width
 10 bar Water Resistance & 4,800 A/m Magnetic Resistance
 Hardlex Crystal & LumiBrite: Durable glass; luminous hands, indices, and bezel for low-light visibility
 Unidirectional Rotating Bezel: Precision timing for dive or daily use
 See-Through Screw-Down Case Back: Exhibition movement with secure seal
 Three-Fold Clasp: Push-button release for a secure fit
 Weight: 165 g