Reference 731.QX.1140.RX belongs to Hublot's King Power line and takes the Oceanographic 4000 to its extreme conclusion. The round carbon fiber case measures 48mm in diameter and 22.40mm thick, giving the watch a commanding presence on the wrist. A fixed bezel, screw-in crown, solid case back, and scratch-resistant sapphire crystal all contribute to a water resistance rating of 4,000m / 13,120ft — placing it among the most capable dive watches ever produced as a limited edition.
The black dial pairs naturally with the dark carbon fiber surround, while a black rubber strap secured by a tang buckle keeps the aesthetic cohesive and ensures a comfortable, secure fit during water use. An automatic movement powers the watch, delivering reliable performance without the need for manual winding.
This is a limited-edition reference that blends extreme technical specification with Hublot's distinctively architectural King Power design language, offered here in a 48mm carbon fiber package built for serious depth.