OT-4 316L Steel And Forged Carbon Men's Watch w/Blue Luminova and Gray Suede Strap, is a bold and powerful timepiece that strikes a balance between pleasure and form. Featuring 46mm 316L steel and forged carbon frame and bezel blasted with grey PVD, stainless steel hex screw detail on bezel, open view on the escapement 4 layered dial; first and third layers sun brushed black, second and fourth layers vertical dark grey, classic Tritec C5 Super Luminova numeral and dot indexes and custom shape sapphire glass. Dark grey Nubuck leather strap with royal blue stitching and buckle. Automatic mechanical movement Miyota 82-S-7. Water resistant up to 50 meters/5 ATM.