Seiko SPB291 King Seiko Tenjin-Fuji Violet Special Edition Casio 30th Anniversary G-Shock Frogman a double gasket construction and

a double gasket construction and screw-down crown are designed and tested for 300 m / 1000 ft of water resistance

Anti-Reflective Double Domed Sapphire Crystal

a gas tube is placed on each hour marker and hands and uses MaraGlo for the 12 hour bezel marker

Offering manual winding capability and a power reserve of approximately 45 hours

and an incredibly accurate Spring Drive system are the foundations for the Grand Seiko Spring Drive Diver watch

Seiko SPB291 King Seiko Tenjin-Fuji Violet Special Edition Casio 30th Anniversary G-Shock Frogman a double gasket construction andKing Seiko Special Edition. Introduced in 1961 and in production until 1975,King Seiko became one of Seiko's most technically innovative and stylish brands, noted for its sleek, dignified angularity. A newly developed slim case and the thin 6R31 automatic movement, with a frequency of 21,600 vibrations per hour, a power reserve of approximately 70 hours, and manual winding capability, make this Special Edition model exceptionally slender and elegant,