The Harry Winston Ocean Sport Automatic (Three-Hand ) Zalium is a highly distinctive luxury sports watch defined by its ultra-light, aerospace-grade alloy casing and skeletonized architecture. It blends high-end diamond-house prestige with rugged, avant-garde engineering. The Magic of Zalium The standout feature of this watch line is its proprietary material, Zalium, a zirconium-based alloy exclusive to the Harry Winston Ocean Collection. Ultra-Lightweight: Noticeably lighter than stainless steel, making the oversized 44mm case comfortable on the wrist. • Hyper-Resilient: Harder and significantly more scratch-resistant than titanium. • Hypoallergenic: Highly resistant to corrosion and completely non-allergenic. Signature Design Elements • The Arches: The crown guard explicitly mirrors the iconic neoclassical arches found on the facade of Harry Winston's flagship salon on Fifth Avenue in New York. • Textured Dial: Utilizes striking gray, blue, and black multi-layered openwork dials that highlight the mechanical automatic movement underneath. Minor, barely noticeable, lack of paint on " Zalium" marking ("A" letter) • Sport Utility: Accompanied by integrated, high-durability rubber straps with a Zalium folding buckle, ensuring water resistance up to 200 meters. Case & Exterior Specs • Material: Satin-finished Zalium . Minor localized scratch on the back. • Case Diameter: 44 mm (excluding the crown guards). • Bezel: Unidirectional rotating bezel made of two-part Zalium with DLC-coated (Diamond-Like Carbon) inserts and a Superluminova dot at 12 o’clock. • Crown Guards: Iconic triple-arched shape reminiscent of Harry Winston's New York flagship boutique. • Crystal: Scratch-resistant sapphire crystal with anti-reflective and slightly smoked coating. • Caseback: Solid Zalium, secured by 4 screws. • Water Resistance: 200 meters (20 ATM / 660 feet), making it a true dive-capable sports watch. Movement & Performance • Caliber: Mechanical self-winding automatic movement (typically utilizing a premium ETA 2892 base paired with a proprietary, highly skeletonized Harry Winston module). • Power Reserve: Approximately 42 hours. • Frequency: 28,800 vibrations per hour (4 Hz). Strap & Clasp • Strap: Integrated vulcanized black rubber strap featuring stylized vertical grooves. • Clasp: Matching Zalium folding deployant buckle with a twin-trigger safety release.