Case Shape: Square with rounded cornersCase Size: 38 mm diameterThickness: 9.7 mmDial Design: Open Heart skeletonized cutout layout revealing the inner gearsMovement Type: Automatic mechanical movement (Calibre R734)Power Reserve: Up to 80 hoursCrystal: Flat sapphire crystal with anti-reflective coatingWater Resistance: 50 meters (5 bar)