Roger Dubuis Golden Square G40 Limited Edition of Only 28 Pieces in Solid 18kt White Gold, Featuring a 40mm x 40mm Square Case with Factory Pave Diamond-Set Bezel, Natural Mother-of-Pearl Dial with Pave Diamond Center, Black Roman Numeral Hour Markers with Inner Minute Track, Blued Steel Spade Hands, Self-Winding Roger Dubuis Caliber RD57 Automatic Movement Bearing the Poinçon de Genève, Sapphire Crystal Exhibition Case Back, and Fitted on a Black Alligator Leather Strap with Diamond-Set 18kt White Gold Tongue Buckle.

The 40mm two-body solid 18kt white gold case is both bold and refined, combining polished and brushed finishes that highlight the sharp geometry of the Golden Square design. The flat curved bezel is factory-set with round brilliant-cut diamonds, adding a layer of brilliance that contrasts beautifully with the structured lines of the case. The straight lugs, secured with visible gold screws, give the watch a strong architectural presence, while the sapphire exhibition case back, secured by eight screws, offers a clear view into the finely finished movement. The dial is truly exceptional, crafted from natural mother-of-pearl with a luminous, iridescent quality, enhanced by a pave diamond center that adds depth and dimension. Black Roman numeral hour markers frame the dial, complemented by a refined minute track and elegant blued steel spade hands, creating a harmonious blend of classical design and high jewelry execution.

At its core is the Roger Dubuis Caliber RD57 automatic movement, a beautifully finished mechanism stamped with the prestigious Poinçon de Genève, a mark of the highest standards in Geneva watchmaking. Rhodium-plated and decorated with fausses côtes finishing, the movement is constructed with 25 jewels and features a straight-line lever escapement, a monometallic balance adjusted to five positions, and a self-compensating flat balance spring. A swan-neck micrometer regulator allows for precise fine adjustment, while a shock absorber system ensures durability. The movement is powered by a dual-barrel architecture, delivering approximately 40 hours of power reserve, and is complemented by a finely finished rotor that reflects Roger Dubuis’ early dedication to both performance and aesthetic excellence.

The Golden Square G40 represents a rare and distinctive chapter in Roger Dubuis’ early production, where traditional Genevan finishing met bold, unconventional design. Limited to only 28 pieces, this reference combines haute horlogerie craftsmanship with high jewelry artistry, resulting in a timepiece that is both technically refined and visually striking. With its Geneva Seal movement, diamond-set case, and unique dial execution, it stands as an exceptional and highly collectible piece for those who appreciate rarity, craftsmanship, and individuality in watchmaking.