821.NM.0170.RX Hublot. The Hublot Square Bang Unico 821.NM.0170.RX is a stunning watch with a sophisticated design and high-quality materials. The watch features a 42 mm satin-finished and polished titanium case that gives it a modern and sporty look. The satin-finished and polished black ceramic bezel with six H-shaped titanium screws adds durability and a touch of elegance to the watch. The skeleton dial has silver-tone hands and index hour markers, which create a beautiful contrast against the black background. The watch features a HUB1280 UNICO manufacture self-winding chronograph flyback movement with a column wheel that offers precise and reliable timekeeping. The movement has a power reserve of up to 72 hours, making it suitable for extended use. The watch comes with a black structured rubber strap with a titanium deployant buckle that ensures a secure and comfortable fit. The strap is both durable and comfortable, making it perfect for everyday wear. The watch is water-resistant up to 100 meters or 330 feet, making it suitable for swimming and snorkeling, but not for diving. Overall, the Hublot Square Bang Unico 821.NM.0170.RX is a stunning watch that combines high-quality materials with advanced mechanics. Its modern and sporty design, combined with precise and reliable timekeeping, make it perfect for those who appreciate both style and functionality.