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Seiko Prospex

SPB313J1 [O]

SPB313J1 [O]

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Seiko Prospex x Automatic ft. 1968 Heritage aka Slim Turtle Men Diver Tonneau 200m Water Resistant Watch SPB313J1 SPB313 SPB-313 SPB-313J1

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)

LumiBrite
Lumibrite on hands, indexes and bezel

Case / Band Material
Stainless steel (super hard coating) case with stainless steel band (three-fold clasp with secure lock, push-button release with extender)

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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