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From the Prospex Collection. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line follows every challenge with technological excellence and style. A modern re-imagining of Seiko's first sport watch, introduced in 1959, this distinctive timepiece is an upgrade of a highly successful Spring 2019 limited edition. Equipped with a rotating inner compass bezel for outdoor adventure, this unique design features a black dial with LumiBrite hands and markers, magnified date window, and sapphire crystal with anti-reflective coating on the inner surface. The 24-jewel automatic movement beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 70 hours, and can be wound manually or automatically. Crafted of stainless steel, with secure tri-fold push button release clasp, screwdown crown and see-through caseback. 20 bar, 200M Water Resistant. *From the Prospex Collection*Modern re-imagining of Seiko's first sport watch, introduced in 1959*Manual and automatic winding capabilities*21, 600 vibrations per hour*Power reserve: approximately 70 hours*24 jewels*Rotating inner compass bezel*Black dial*Magnified date window*LumiBrite hands and markers*Sapphire crystal with anti-reflective coating on the inner surface*Screwdown crown and see-through caseback*Case diameter: 39.5mm*Stainless steel case and bracelet*Tri-fold push button release clasp*Water-resistant to 20 bar, 200 meters (660 feet)*Caliber 6R35*