Seiko Prospex x Solar Sumo GMT ft. Greenwich Mean Time Men Casual Formal Round Diver 200m Water Resistant Watch SFK001J1 SFK001 SFK-001 SFK-001J1

Caliber Number / Movement
5K65 (solar powered)

Power Reserve / Accuracy
Approximately 9 months when fully charged ( /-15 seconds per month)

Crystal
Sapphire crystal (anti-reflective coating)

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: 13.2 mm
Diameter: 45.0 mm
Length: 51.8 mm

Other Specifications
Seiko Prospex x Solar Sumo GMT ft. Greenwich Mean Time
Made in Japan
Unidirectional rotating bezel
Screw-down crown
Screw case back
Quick-start function
Overcharge prevention function
Date and 24-hour (GMT) display
Regular timekeeping (analog display)