The Oris Big Crown ProPilot Big Date Bronze Ref. 751.7761.3164 is a distinguished aviation-inspired timepiece that marks a significant milestone as the first pilot’s watch from the independent Swiss manufacture to be cased in bronze, offering a warm, living material that develops a unique patina over time, making each watch truly personal to its wearer . This highly functional 41mm instrument features a multi-piece bronze case, bezel, and signature oversized screw-in crown, all of which showcase a deep black dial with applied golden indices and white Super-LumiNova®-filled hands, ensuring exceptional legibility and a striking contrast that is essential for a professional pilot’s watch . The dial is further enhanced by a highly practical oversized date window at 3 o’clock, driven by the reliable Swiss-made Oris Caliber 751 automatic movement, visible through the screwed stainless steel caseback with mineral glass, delivering a 38-hour power reserve and a precision of 28,800 vibrations per hour . Completing the purposeful aesthetic is a robust green Ventile® strap, a material celebrated for its durability and water resistance, secured by Oris’s playful yet functional bronze “Lift” folding clasp, inspired by passenger aircraft seat-belt buckles for a secure and tactile fit . With 100-meter water resistance, a domed sapphire crystal with internal anti-reflective coating, and an interhorn width of 20mm, this is a versatile contemporary classic that celebrates the spirit of flight while offering the distinctive charm of bronze craftsmanship for the discerning collector. Key specifications: 41mm bronze case; black dial with golden indices and Super-LumiNova® hands; Oris Caliber 751 automatic movement; 38-hour power reserve; green Ventile® strap with bronze “Lift” clasp; 100m water resistance.