In the high-stakes world of luxury watch collecting, a new bezel colorway from Rolex is treated with the same reverence as a major industry milestone. For decades, the GMT-Master II lineup has been defined by vibrant, high-contrast primary colors—from the red-and-blue Pepsi to the blue-and-black Batman.
At Watches and Wonders 2023, Rolex broke away from the traditional color playbook by introducing a subdued, monochromatic black and grey Cerachrom bezel wrapped in yellow gold: the Yellow Rolesor Ref. 126713GRNR and the solid 18k yellow gold Ref. 126718GRNR.
The release immediately ignited debate across the collector community. Lacking the overt flash of saturated ceramic, these references earned two distinct monikers: the “Bumblebee” and the increasingly dominant “Zombie.”
While the all-steel “Bruce Wayne” (Ref. 126710GRNR) grabbed mainstream headlines a year later in 2024—you can read our complete guide to the Rolex GRNR family here—the two-tone and solid gold editions offer a masterclass in elevated luxury.
Zombie vs. Bumblebee: The Nickname Breakdown
Rolex never officially assigns pop-culture monikers to its watches, leaving the naming tradition entirely to collectors, forums, and secondary market traders. With the 2023 GRNR precious metal releases, two terms emerged:

- The “Bumblebee” (Ref. 126713GRNR): Used primarily for the two-tone Yellow Rolesor configuration. The high contrast between the jet-black lacquer dial, black ceramic upper bezel, and brilliant 18k yellow gold center links and bezel fluting gives it an aggressive, two-tone insect aesthetic.
- The “Zombie” (Ref. 126713GRNR & Ref. 126718GRNR): This moniker has become the umbrella title for both the two-tone and full yellow gold editions. The daylight (bottom) half of the ceramic bezel features a muted, desaturated slate-grey tone. Collectors described the cool, lifeless grey next to the warm, radiant yellow gold as an eerie, “undead” contrast—turning the “Zombie” into an affectionate cult title.
Shop the Rolex “Zombie” GMT-Master II
The 2023 Return of Yellow Gold to the GMT-Master II

Beyond its unique bezel chemistry, the 2023 launch of the 126718GRNR and 126713GRNR marked a critical historical milestone: the return of yellow gold to the GMT-Master II line.
Ever since the solid yellow gold green-dial GMT (Ref. 116718LN) was discontinued in 2019, Rolex’s dual-time precious metal collection had been entirely dominated by Everose (rose gold) and white gold. The 2023 release re-established classic yellow gold as a pillar of Rolex’s professional sports collection, executed with a modern, architectural color scheme.

Rolex offers both the solid 18k yellow gold 126718GRNR and the two-tone 126713GRNR exclusively on the five-piece link Jubilee bracelet. The option to select between an Oyster or Jubilee bracelet is strictly limited to the stainless steel “Bruce Wayne” model (Ref. 126710GRNR).
Pairing precious metal GMTs exclusively with the Jubilee bracelet is a deliberate tribute to the late-1950s and 1960s heritage, giving the Zombie a luxurious drape and refined presence on the wrist.
Technical Specifications: Rolex Zombie Lineup

| Feature | Yellow Rolesor (Ref. 126713GRNR) | Solid 18k Yellow Gold (Ref. 126718GRNR) |
|---|---|---|
| Debut Year | 2023 (Watches and Wonders) | 2023 (Watches and Wonders) |
| Case Diameter | 40 mm | 40 mm |
| Case Material | Oystersteel & 18k Yellow Gold | Solid 18k Yellow Gold |
| Bezel | Black & Grey Cerachrom (Molded gold numerals) | Black & Grey Cerachrom (Molded gold numerals) |
| Dial | Gloss Black Lacquer | Gloss Black Lacquer |
| GMT Hand | Solid 18k Yellow Gold | Solid 18k Yellow Gold |
| Movement | Calibre 3285 Manufacture Automatic | Calibre 3285 Manufacture Automatic |
| Power Reserve | Approx. 70 hours | Approx. 70 hours |
| Water Resistance | 100 meters / 330 feet | 100 meters / 330 feet |
| Bracelet | Two-Tone Jubilee with Easylink 5 mm | Solid 18k Yellow Gold Jubilee with Easylink 5 mm |
Frequently Asked Questions (FAQs)
When was the Rolex Zombie introduced?
The Rolex Zombie models (Ref. 126713GRNR and Ref. 126718GRNR) were officially introduced in April 2023 at the Watches and Wonders exhibition in Geneva.
Why is the Rolex GMT-Master II called the “Zombie” or “Bumblebee”?
The “Zombie” nickname comes from the pairing of the cold, desaturated slate-grey ceramic bezel insert against warm 18k yellow gold. The name “Bumblebee” is used interchangeably for the two-tone Ref. 126713GRNR due to the sharp contrast between its yellow gold accents and jet-black dial/bezel elements.
What is the difference between the Rolex Zombie and the Bruce Wayne?
While both feature the black-and-grey Cerachrom bezel (GRNR), the Zombie refers to the two-tone Rolesor (126713GRNR) and full 18k yellow gold (126718GRNR) versions with gold hands and dial accents. The Bruce Wayne (126710GRNR) is the all-stainless steel model featuring a bright green 24-hour hand and green dial text.
Can you buy the Rolex Zombie 126718GRNR on an Oyster bracelet?
No. Unlike the stainless steel GMT-Master II, Rolex produces the 126713GRNR and 126718GRNR exclusively on the Jubilee bracelet.
Explore Our Curated Rolex GMT-Master II Collection
Whether you are captivated by the bold contrast of the two-tone Zombie Ref. 126713GRNR, the sheer wrist presence of the solid gold Ref. 126718GRNR, or classic references like the Pepsi and Batman, the GMT-Master II remains the pinnacle of luxury aviation timepieces.
We invite you to explore our carefully curated, fully authenticated selection of pre-owned Rolex GMT-Master II watches and find the next centerpiece for your collection.
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