SFJ007 Seiko Prospex 1/100th Limited edition 4,000 Pieces Speedtimer Limited edition of 4,000 pieces Caliber Number 8A50 Solar Movement Type ±15 seconds per month precision Operating for approx. 6 months (when fully charged) power reserve Case Thickness 12.9mm Case Diameter 42.0mm   Case Lug-to-lug 48.3mm...