Casio Edifice EFR-501SP-1AVDF

• 1/20-second chronograph
• 5-hour retrograde dial at 9 o’clock
• Tachymeter
• Alarm
• Stainless steel case and band
• 100-meter water resistance

• Partial ion plated
• Retrograde dial
• Carbon fiber dial
• Mineral Glass / Spherical Glass
• Tachymeter
• Screw Lock Crown
• Screw Lock Back
• 100-meter water resistance
• "Double-lock, 1-press, 3-fold Clasp"
• Stainless Steel Band
• Solid Band
• 1/20-second stopwatch
  Measuring capacity: 4:59’59.95”
  Measuring mode: Elapsed time
• Date display
• Regular timekeeping
  Analog: 4 hands (hour, minute, stopwatch seconds, alarm),
  4 dials (timekeeping second or stopwatch 1/20 second,
  stopwatch hours, stopwatch minutes, alarm on/off)
• Accuracy: ±20 seconds per month
• Approx. battery life: 2 years on SR927W
• Size of case: 49 × 45.3 × 13.3 mm
• Total weight: 176 g