BENLYDESIGN X ANGLES Case 316L Stainless Steel 41mm Width, 8.8mm Height(Excluding crystals) Top double-dome sapphire crystal with antireflective coating. (When “double domed,” the crystal is round not just on the outside but the inside, as well, and this prevents distortion when looking at the watch from an angle.) Exhibition sapphire crystal caseback Push-pull crown Water Resistance: 5 ATM (50m) Movement Miyota 9039 with Rotating Hour Module 24 Jewels 28,800 Beats Per Hour Accurate to +/-10 Seconds a Day 36 Hour Power Reserve Dial 316L Stainless Steel arm, anodized aluminum Rotating hourlisk, and Geneva Pattern dial,Super-Luminova™ coated numerals on the semi-circular minute track, and Rotating hourlisk Strap 20-28mm Silicone strap with Deployant Clasp 316L Stainless Steel buckle.