Seiko Prospex x Automatic ft. 1968 Heritage aka Slim Turtle Men Diver Tonneau 200m Water Resistant Watch SPB317J1 SPB317 SPB-317 SPB-317J1 Explore Seiko iconic Prospex Turtle dive watches - rugged 41mm cushion-case timepieces with 200m water resistance, robust automatic movements, and luminous markers. These professional-grade divers feature Seiko heritage design with modern upgrades like sapphire crystals. Built for serious underwater adventure while maintaining vintage-inspired style. Caliber Number / Movement 6R35 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 70 hours (+25 to -15 seconds per day) Crystal Sapphire crystal (curved, anti-reflective coating) Luminous LumiBrite on hands, indexes and bezel Case / Band Material Stainless steel (super hard coating) case with silicone band Water Resistance 200m / 660ft diver Case Size Thickness: 12.3 mm Diameter: 41.0 mm Length: 46.9 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. 1968 Heritage aka Slim Turtle Made in Japan Unidirectional rotating bezel Screw-down crown Screw case back 24 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)
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