Mechanical
Chronograph up to 12 hours. 28,000 vibrations per hour
Power reserve: over 45 hours
34 jewels. 304 parts
Column wheel and vertical clutch
One-piece three point hamer for instant reset
Sapphire crystal with Seiko's proprietary super clear, anti-reflective coating. See through case back with sapphire crystal
Limited Edition.
Caliber:8R28
100M Water Resistant
