Invicta Men's 1684 Subaqua Mechanical Navy Blue Dial Stainless Steel Watch Mechanical tourbillon movement Flame-fusion crystal; polished stainless steel case and bracelet Skeleton 60 second subdial at 6:00 Blue and silver dial with metallic blue and white hands and hour markers; luminous; blue ion-plated and stainless steel bezel; screw-down crown; exhibition case back; limited edition Water-resistant to 500 m (1640 feet)