February 22, 2024

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SKU: 451.EX.5129.EX


Case Material

Blue Ceramic

Case Shape


Case Size

42 mm

Dial Colour




Glass Material

Sapphire Crystal With Anti-Reflective Treatment



Strap Colour


Strap Material


451.EX.5129.EX Hublot. The Hublot Big Bang 451.EX.5129.EX Men’s Watch is a stunning timepiece that features a brushed and polished blue ceramic case and band, creating a modern and stylish look. The watch band is secured with a deployment clasp, providing a comfortable and secure fit. The watch’s fixed bezel is accented with six H-shaped titanium screws, adding to its industrial and contemporary design. The silver-tone hands and index hour markers on the skeleton dial are easy to read, and the minute markers around the outer rim and two sub-dials add to the watch’s functionality. The watch is powered by the Hublot Caliber Unico 2 engine, an automatic chronograph movement that provides a power reserve of up to 72 hours. The watch functions include power reserve, hour, minute, second, and chronograph, providing all the features you need to keep track of time with precision and accuracy. The watch also features a date display at the 3 o’clock position, adding to its practicality. The scratch-resistant sapphire crystal protects the watch face, while the transparent case back provides a view of the watch’s inner workings. The watch is water-resistant up to 100 meters/330 feet, making it suitable for swimming, snorkeling, and light recreational diving. The round case shape has a diameter of 42mm, making it a perfect size for most wrist sizes. Overall, the Hublot Big Bang 451.EX.5129.EX Men’s Watch is a sophisticated and functional timepiece that combines style with precision and accuracy, making it an excellent choice for those who value both fashion and function in their timepiece.

The Unico 2 caliber was designed to equip smaller chronographs and also open the world of Hublot to new enthusiasts. It retains the unique design of its former version with a double coupling system visible from the dial side as well as a 72-hour power reserve. But thanks to various technical optimizations, including the introduction of a new, flatter automatic winding system, it has been reduced by 1.3 mm in thickness. For Hublot, materials are an integral part of their watches design. They must complement their design, while protecting their mechanism and withstand the test of time. As such, the Manufacture has chosen to use high-tech ceramic for certain bezels and cases; it is an ultra-tough and almost entirely scratch-proof material (apart from the diamond) with a base of zirconium sintered at very high temperatures.