• Stainless steel case
• 100-meter water resistance
• Screw lock back
• Three dials: date, day of the week, and 24-hour time
• Luminous paint on the hands and hour markers for easy reading in the dark
• Case / bezel material: Stainless steel
• Resin Band
• 100-meter water resistance
• Mineral Glass
• Screw Lock Back
• Regular

• Stainless steel case
• 100-meter water resistance
• Screw lock back
• Three dials: date, day of the week, and 24-hour time
• Luminous paint on the hands and hour markers for easy reading in the dark
• Case / bezel material: Stainless steel
• Resin Band
• 100-meter water resistance
• Mineral Glass
• Screw Lock Back
• Regular timekeeping
• Analog: 3 hands (hour, minute, second),
• 3 dials (date, day, 24-hour)
• Accuracy: ±20 seconds per month
• Approx. battery life: 2 years on SR621SW
• Size of case: 53.5 X 40 X 10.6 mm
• Item Weight: 72 g