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Seiko Prospex

SPB103J1

SPB103J1

$989
$1,314 $989
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Seiko Prospex x Automatic ft. Sumo Men Diver Round 200m Water Resistant Watch SPB103J1 SPB103 SPB-103 SPB-103J1

Discover the Seiko Sumo, a bold watch that combines striking design with exceptional craftsmanship. Its 45mm stainless steel case offers a robust yet comfortable fit, complemented by a uni-directional rotating bezel. Powered by the reliable Caliber 6R35 automatic movement, it boasts a 70-hour power reserve and smooth operation. The sapphire crystal dial features lumibrite hands for low-light visibility and a practical date function. With 200 meters of water resistance, this watch is perfect for any adventure, making it a favorite among enthusiasts.

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

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

Crystal
Sapphire crystal

LumiBrite
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: 12.9 mm
Diameter: 45.0 mm
Length: 52.6 mm

Other Specifications
Seiko Prospex x Automatic ft. Sumo
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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