The Hublot Big Bang Unico Automatic Men’s Watch (Model 421.OM.1180.RX) blends cutting-edge engineering with bold luxury design through the use of 18K King Gold, black ceramic, and an advanced skeletonized dial layout. Powered by the in-house HUB1280 automatic chronograph movement, this timepiece delivers exceptional precision, a 72-hour power reserve, and the striking visual presence characteristic of Hublot’s Big Bang Unico collection. Built for those who appreciate high-end mechanical craftsmanship, this model offers durability, sophistication, and contemporary style.
Key Features & Specifications
Design & Aesthetics
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Matte black skeletonized dial exposing inner mechanical elements
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Rose gold-tone hands with luminescent coatings
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Combination of Arabic numeral and index hour markers
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Minute markers outlined along the outer rim
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18K King Gold case offering a deep, warm tone unique to Hublot’s proprietary alloy
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Fixed black ceramic bezel supplying contrast and scratch resistance
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Transparent see-through case back providing a full view of the movement
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Black rubber strap delivering sport-luxury comfort
Movement & Performance
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Swiss-made Hublot Calibre HUB1280 automatic chronograph movement
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In-house UNICO architecture for enhanced precision and durability
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43-jewel construction, composed of 354 components
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High-beat rate at 28,800 vph for fluid second-hand motion
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Impressive 72-hour power reserve for extended wear
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Self-winding mechanism with manual winding capability
Durability & Comfort
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Scratch-resistant sapphire crystal ensuring long-lasting clarity
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Rubber strap engineered for flexibility and comfort
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Deployant buckle clasp for secure and ergonomic fastening
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Water resistance rated at 100 meters / 330 feet, suitable for swimming and light marine use
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Ceramic bezel offering resistance to corrosion and daily wear
Functionality
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Analog display with luminescent hands and markers for visibility in low light
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Chronograph sub-dials for 60-minute tracking and running seconds
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Date display positioned at the 3 o’clock mark
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Full functions: date, hour, minute, second
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Designed with a bold, technical aesthetic signature to the Big Bang Unico series
Case Details
Band Details
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Material: Rubber
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Type: Strap
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Color: Black
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Clasp: Deployant buckle
Ideal For
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Collectors seeking a luxury chronograph with in-house movement engineering
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Enthusiasts who value bold materials such as 18K King Gold and ceramic
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Individuals wanting a statement timepiece with mechanical visibility
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Fans of Hublot’s iconic Unico design language
Additional Information
