Oris Artelier Big Date Watch # 66575494054LS. Size : 40.50mm(Gents). Band : Crocodile Leather Strap. Red-Rotor High-Mech, Mechanical automatic movement (base ETA 2892A2, 30 jewels, 42hrs power reserve), display of hours and minutes from the centre, Big date at 12 oclock, seconds subdial at 6 o'clock, polished hands with Superluminova inlay, flat sapphire crystal with inside anti-reflex coating, case back with mineral crystal, water resistant to 30m.