• Mineral Glass
• Screw Lock Back
• Anti-reverse Bezel
• 100-meter water resistance
• Case / bezel material: Stainless steel
• Stainless Steel Band
• One-touch 3-fold Clasp
• Regular timekeepingAnalog: 3 hands (hour, minute, second), 3 dials (date, day, 24-hour)
• Accuracy: ±20 seconds per month
• Approx. battery life: 3

• Mineral Glass
• Screw Lock Back
• Anti-reverse Bezel
• 100-meter water resistance
• Case / bezel material: Stainless steel
• Stainless Steel Band
• One-touch 3-fold Clasp
• Regular timekeepingAnalog: 3 hands (hour, minute, second), 3 dials (date, day, 24-hour)
• Accuracy: ±20 seconds per month
• Approx. battery life: 3 years on SR621SW
• Size of case: 53 × 45.5 × 11.5 mm
• Total weight: 162 g