CASE Shape: Round Finish: Polished and Brushed Material: Stainless Steel Width: 46 mm without crown Case Length with Lugs: 50 mm Water Resistance: 100 m (330 feet) Crystal: Mineral Crystal Thickness: 14 mm Case Back: Screw-Down Sapphire Crystal See-Through DIAL Attributes: Engraved and Skeleton Window Color: Blue and Silver Hands: Silver Tone Hands Luminescent Markers: Stick Index Silver Tone Luminescent BEZEL Material: Stainless Steel MOVEMENT Type: Mechanical Automatic (Self-Winding) Jewels: 21 Crown: Pull and Push Crown BAND Band Type: Bracelet Band Finish: Polished and Brushed Band Material: Stainless Steel Band Color: Silver Width: 23 mm Length: 8.5 inches Clasp: Fold-Over Clasp w/ Push Button Safety Flap and Wetsuit Ext.