Seiko Prospex x Mechanical Land ft. Alpinist The Black Series aka Night Vision (Limited Edition of 5,500 Pieces) Men Casual Formal Round 200m Water Resistant Watch SPB337J1 SPB337 SPB-337 SPB-337J1

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

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

Crystal
Sapphire crystal with magnifier (anti-reflective coating)

LumiBrite
Lumibrite on hands and indexes

Case & Band Material
Stainless steel (hard coating) case with metal band (three-fold clasp with push-button release)

Water Resistance
200m / 20 bar

Case Size
Thickness: 13.2 mm
Diameter: 39.5 mm
Length: 46.4 mm

Other Specifications
Seiko Prospex x Mechanical Land ft. Alpinist The Black Series aka Night Vision (Limited Edition of 5,500 Pieces)
Made in Japan
LIMITED EDITION on the case back
Serial number engraved on the case back
Magnetic resistance (4,800 A/m)
Rotating compass inner ring
See-through case back
Screw-down crown
Screw case back
24 jewels
Date display
Stop second hand function (hacking mechanism)
Regular timekeeping (analog display)