• 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 timekeeping
Analog: 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: 51 × 45.7 × 11.8 mm
• Total weight: 146 g