• Mineral Glass
• Cut Glass
• Water Resistant
• Case / bezel: Ion plated
• Stainless Steel Band
• Triple-fold Buckle
• Regular timekeepingAnalog: 3 hands (hour, minute, second)
• Accuracy: ±20 seconds per month
• Approx. battery life: 2 years on SR521SW
• Size of case: 31.5 X 20.5 X 6.9 mm
• Total weight: 39 g