• Intended Use: Science, sports, time and motion studies
  • 1/5 second and decimal minute (1/100 or 0.01 minute) scales
  • Sweep second hand makes one revolution in 60 seconds, 30 minute register
  • Rugged 15 jewel lever movement
  • Shock-resistant, anti-magnetic movement
  • Temperature-compensated hairspring
  • Starts, stops, and returns to zero by successive crown depressions