• Case / bezel material: Stainless steel
• Resin Band
• Mineral Glass
• Screw Lock Back
• 50-meter water resistance
• 1-second stopwatch
  Measuring capacity: 29'59
  Measuring mode: Elapsed time
• Regular timekeeping Analog: 3 hands (hour, minute, second), 3 dials (stopwatch seconds, 24-hour, stopwatch minutes)
• Accuracy: Çï¶Ï20 seconds per month
• Approx. battery life: 2 years on SR621SW
• Size of case : 51.5ƒ?ª?44ƒ?ª?10.9mm
• Total weight : 91g