Prospex Sea Series. Designed for those who treat life as the ultimate adventure the Seiko Prospex line meets every challenge with technological excellence and style. Taking on a sporty yet refined impression this beautiful series created with a sleek profile and proportions specially tailored for a sophisticated look features both enhanced water-resistance for marine adventures and an elegance suited for finer occasions. An extraordinary blend of form and function the impressive timepiece displays a luxurious mother-of-pearl dial with LumiBrite hands for superior visibility in low-light conditions topped with a scratch-resistant sapphire crystal with anti-reflective coating on the inner surface. Crafted of stainless steel the versatile watch is designed with a built-in crown protector a secure tri-fold push button release clasp and a screwdown caseback. 20 bar 200M Water Resistant.