Rolex GMT-Master II Carbon Black Dial

This is a DiW (Designa Individual Watches) Rolex GMT-Master II, a genuine Rolex rebuilt by the German customiser DiW with a carbon case and a black dial. It is worth being clear on what that means: Rolex does not make a carbon GMT-Master II. DiW starts with an authentic Rolex GMT-Master II and replaces the case and various components with its own forged carbon and custom parts, so the watch is real Rolex at its core but is a customised piece rather than a factory Rolex product. The result is an all-black, matte, stealth version of a watch normally seen in steel with a bright bezel.

Underneath the custom exterior it keeps what makes a GMT a GMT: the genuine Rolex automatic movement, the 24-hour hand and rotating bezel that let you read a second time zone at a glance, and the date at 3 o'clock. That dual-time function was originally developed for Pan Am pilots in the 1950s and remains the reason the model is the default travel watch. Carbon is light and highly scratch resistant, so a case this size sits easily on the wrist.

Because the case and components are aftermarket, this watch falls outside Rolex's warranty and service programme, Rolex does not service modified watches, so it should be understood as a customised piece rather than a standard reference. At Konesseur, every watch is authenticated and inspected in Dubai before listing. See more Rolex or the full watches range to compare.

• Model: DiW (Designa Individual Watches) customised Rolex GMT-Master II, carbon case with black dial (genuine Rolex base watch, aftermarket case and parts)
• Movement and function: genuine Rolex automatic movement with GMT second time-zone hand, rotating 24-hour bezel, date at 3 o'clock, sapphire crystal, forged carbon case
• Condition, authenticity and disclosure: authenticated by Konesseur; carbon case and components are aftermarket DiW modifications, so the watch falls outside Rolex warranty and service (confirm base reference, caliber, condition, box and papers against the listing)