• Mineral Glass
• Screw Lock Back
• 100-meter water resistance
• Case / bezel material: Stainless steel
• Stainless Steel Band
• One-touch 3-fold Buckle
• Regular timekeepingAnalog: 3 hands (hour, minute, second),3 dials (date, day, 24-hour)
• Accuracy: ±20 seconds per month
• Approx. battery life: 2 years on SR621SW
• Size

• Mineral Glass
• Screw Lock Back
• 100-meter water resistance
• Case / bezel material: Stainless steel
• Stainless Steel Band
• One-touch 3-fold Buckle
• Regular timekeepingAnalog: 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/total weight: 48 X 43.7 X 9.8 mm/162 g