Greubel Forsey GMT Balancier Convexe - The USD 500,000 Titanium Masterpiece with a Rotating Earth at Its Heart
- 9th Jun 2025
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In the rarefied world of haute horlogerie, where mechanical poetry meets astronomical precision, Greubel Forsey has orchestrated something transcendent. The new GMT Balancier Convexe isn't merely a timepiece—it's a miniature cosmos strapped to your wrist, where Earth itself becomes the protagonist in an intimate celestial performance.
A Masterpiece Reborn: Titanium Elegance Meets Theatrical Grandeur
This latest incarnation represents nothing short of a complete reimagining. The previous model has been swept away, replaced by a creation that marries architectural audacity with newfound refinement. The sculpted titanium case, now elegantly proportioned at 42.90mm across the caseband, achieves that most coveted of horological virtues: commanding presence without sacrificing wearability.
Here lies the genius of Greubel Forsey's design philosophy—theatrical drama tempered by sophisticated restraint. The result is a timepiece that commands attention yet never overwhelms the wearer, much like other exceptional creations featured in the most complicated watches in the world.
Beneath the Crystal: A Symphony of Complications in Perfect Harmony
Under the domed sapphire crystal, a carefully choreographed dance unfolds. Hours, minutes, seconds, dual time zones, and universal time indications orbit around the slowly rotating terrestrial globe—each complication positioned with surgical precision to ensure Earth never relinquishes its starring role.
In a masterstroke of integrated design, the 72-hour power reserve indication has been woven seamlessly into the dial architecture. No visual clutter disturbs the composition; every element serves both aesthetic and functional purpose with equal dedication. This level of mechanical sophistication places the GMT Balancier Convexe among the ranks of timepieces celebrated by the holy trinity of watchmakers.
The Heart of Complexity: 496 Components in Mechanical Harmony
The movement within tells its own story of obsessive perfectionism. Now comprising 496 individual components—a remarkable 73 more than its predecessor—this mechanical marvel operates with the quiet confidence of true mastery.

Earth in Motion: The Hypnotic Heart of Time
The rotating globe transcends mere decoration. This miniature Earth completes one full rotation every 24 hours, creating a hypnotic meditation on time's passage. It's watching cosmic choreography in microcosm—utterly mesmerising and deeply contemplative.

Revolutionary Escapement Technology
The inclined escapement represents a pinnacle of horological engineering, showcasing the same dedication to mechanical innovation found in other exceptional timepieces featuring flying tourbillon complications. This technical mastery demonstrates why Greubel Forsey continues to push the boundaries of what's possible in mechanical timekeeping.
Rarity Defined: Limited to the Chosen Few
Only 22 examples will ever exist. For a creation that transcends the boundaries between timepiece and art object, such exclusivity feels entirely appropriate. This is watchmaking as museum-worthy craftsmanship—a mechanical sculpture that happens to tell time with astronomical precision.

Frequently Asked Questions
What makes the GMT Balancier Convexe unique among luxury timepieces?
The GMT Balancier Convexe features a rotating Earth globe that completes one full rotation every 24 hours, creating a mesmerizing display of cosmic choreography while serving as a functional GMT complication. Its 496-component movement includes an inclined escapement suspended beneath the globe.
How many GMT Balancier Convexe watches will be produced?
Only 22 examples of this exceptional timepiece will ever be created, making it an extremely exclusive collector's piece that transcends the boundaries between watchmaking and art.
What is the case size and material of the GMT Balancier Convexe?
The watch features a sculpted titanium case measuring 42.90mm across the caseband, achieving commanding presence while maintaining wearability through elegant proportions and lightweight titanium construction.
What complications does the GMT Balancier Convexe feature?
The timepiece displays hours, minutes, seconds, dual time zones, universal time indications, and a 72-hour power reserve. All complications are orchestrated around the central rotating Earth globe without creating visual clutter.
What cities are featured on the universal time display?
The sapphire disc on the case back is etched with 24 cities for universal and daylight-saving time readings. Notably, La Chaux-de-Fonds takes the traditional position of Paris, paying homage to the Swiss town where Greubel Forsey creates their horological masterpieces.
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