Panerai Luminor Base Logo Acciaio PAM00634 Limited edition of 500. 44mm diameter steel case, which is water resistant to 100 meters. Hand wound OP I caliber movement, 21,600 vph, 17 jewels, power reserve of 56 hours. Black dial with luminous Arabic and Index hour markers. Polished steel bezel. Solid case back. Black calf leather strap with white stitching with large steel buckle. Box and papers dated March 2016.