• Glass bezel
• Sapphire Glass
• Screw Lock Back
• 50-meter water resistance
• Case / bezel material: Stainless steel
• Stainless Steel Band
• One-touch 3-fold Clasp
• Solid Band

• Moon phase
• Regular timekeepingAnalog: 3 hands (hour, minute, second), 3 dials (date, day, moon phase)
• Accuracy: ±20 seconds per month
• Approx.

• Glass bezel
• Sapphire Glass
• Screw Lock Back
• 50-meter water resistance
• Case / bezel material: Stainless steel
• Stainless Steel Band
• One-touch 3-fold Clasp
• Solid Band

• Moon phase
• Regular timekeepingAnalog: 3 hands (hour, minute, second), 3 dials (date, day, moon phase)
• Accuracy: ±20 seconds per month
• Approx. battery life: 3 years on SR621SW
• Size of case: 35.8 × 40 × 8.9 mm
• Total weight: 89 g