Seiko Prospex x Mechanical ft. Sumo Men Casual Formal Tonneau Diver 200m Water Resistant Watch SPB103J1 SPB103 SPB-103 SPB-103J1
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 metal band (three-fold clasp with secure lock, push-button release with extender)
Water Resistance
200m / 660ft diver’s
Case Size
Thickness: 12.9 mm
Diameter: 45.0 mm
Length: 52.6 mm
Other Specifications
Seiko Prospex x Mechanical 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)
SPB103J1
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