- Mineral Glass
- Cut Glass
- Water Resistant
- Case / bezel: Ion plated
- Stainless Steel Band
- One-touch 3-fold Clasp
- Regular timekeepingAnalog: 3 hands (hour, minute, second)
- Accuracy: ±20 seconds per month
- Approx. battery life: 2 years on SR521SW
- Size of case: 30 × 20.5 × 8.2 mm
- Total weight: 61
- Mineral Glass
- Cut Glass
- Water Resistant
- Case / bezel: Ion plated
- Stainless Steel Band
- One-touch 3-fold Clasp
- Regular timekeepingAnalog: 3 hands (hour, minute, second)
- Accuracy: ±20 seconds per month
- Approx. battery life: 2 years on SR521SW
- Size of case: 30 × 20.5 × 8.2 mm
- Total weight: 61 g