Invicta Men's 1256 Sea Spider Mechanical Skeleton Dial Grey Polyurethane Watch Precise Hand-Wind Mechanical movement Flame-fusion crystal; Brushed and polished stainless steel case; Grey polyurethane strap with stainless steel inserts 60 second subdial at 9:00 Blue skeleton dial with silver tone and white hands; Luminous; unidirectional stainless steel bezel; Exhibition case back 50 meters water resistant