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Seiko Prospex

SPB299J1 (STO) [O]

SPB299J1 (STO) [O]

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Seiko Prospex x Automatic ft. Marinemaster aka Save The Ocean (STO) (Special Edition) Men Diver Round 200m Water Resistant Watch SPB299J1 SPB299 SPB-299 SPB-299J1

The Seiko Prospex SPB299J1 Save The Ocean Special Edition revives the 1968 diver legacy with a striking gradient blue dial, 42mm stainless steel case, and robust 6R35 movement (70h power reserve). This eco-conscious timepiece features 200m water resistance, sapphire crystal, and a unidirectional bezel - blending vintage aesthetics with modern dive performance for ocean advocates and collectors.

Caliber Number / Movement
6R35 (automatic with manual winding capacity)

Power Reserve / Accuracy
Approximately 70 hours (+25 to -15 seconds per day)

Crystal
Sapphire crystal (anti-reflective coating)

Luminous
LumiBrite on hands, indexes and bezel

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

Water Resistance
200m / 660ft diver

Case Size
Thickness: 12.5 mm
Diameter: 42.0 mm
Length: 48.8 mm
Lug width: 20.0 mm

Other Specifications
Seiko Prospex x Automatic ft. Marinemaster aka Save The Ocean (STO) (Special Edition)
Made in Japan
SPECIAL EDITION on the case back
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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