Oris Big Crown BC3 Chronograph Watch # 67475114164MB. Size : 42.00mm(Gents). Band : Stainless Steel Bracelet. Red-Rotor High-Mech, Mechanical chronograph automatic movement (base Valjoux 7750, 25 jewels, 42hrs power reserve), stainless steel casing, fine timing device and stop-second, center hands for hours, minutes and chronograph, 3 subdials for continous seconds, 30 minutes and 12 hours counter, date at 3 oclock, quick-date function, polished hands with Tritium inlays, flat sapphire crystal with inside anti-reflex coating, transparent case back with mineral crystal, water resistant to 50m.