Zenith G.F.J. Tantalum & Yellow Gold: The Return of the Legendary Calibre 135! (2026)

Unveiling the Legacy: Zenith's G.F.J. Collection

In a move that pays homage to its rich history, Zenith has expanded its G.F.J. collection, a testament to the brand's 160-year legacy. The new additions, a tantalum edition and a yellow gold model, not only celebrate the iconic Calibre 135 movement but also showcase the brand's innovative spirit.

The Calibre 135: A Chronometer's Journey

The Calibre 135, originally crafted in the late 1940s, was a masterpiece designed for precision. Its large barrel and oversized balance wheel ensured stability and accuracy, making it a force to be reckoned with in chronometry competitions. The competition-grade 135-O, in particular, dominated the scene, winning over 230 observatory prizes and securing an unprecedented five consecutive first places at the Neuchâtel Observatory.

What makes this movement truly fascinating is its ability to blend traditional craftsmanship with modern improvements. The re-engineered Calibre 135 retains its distinctive 13-ligne diameter and construction, but now boasts a 72-hour power reserve and hacking seconds, a feature often overlooked in vintage movements.

The G.F.J. in Tantalum: A Technical Marvel

The tantalum edition of the G.F.J. is a true collector's item. With its 39.5mm case crafted from tantalum, a metal rarely used in watchmaking due to its density, this timepiece exudes exclusivity. The natural blue-grey tone of tantalum gives it a unique, technical appeal.

The dial, a three-part masterpiece, features a polished black onyx center, creating a mesmerizing depth. The oversized small-seconds counter in grey mother-of-pearl adds a touch of elegance. The signature brick-pattern guilloché ring, inspired by Zenith's manufacture, surrounds the dial, further enhancing its visual appeal. Eleven baguette-cut diamond indices complete the monochrome look.

Under the sapphire caseback, the movement reveals a dark ruthenium finish, matching the tone of the tantalum case. The Geneva stripes and hand-chamfered bridges add a touch of refinement, showcasing Zenith's attention to detail.

The G.F.J. in Yellow Gold: Warmth and Elegance

The yellow gold model offers a warmer, more inviting feel. While maintaining the 39.5mm case size and stepped bezel, the curved lugs add a touch of elegance. The dial, true to the original concept, introduces a central disc in bloodstone, a unique green jasper with natural red inclusions.

The oversized mother-of-pearl small-seconds counter at six o'clock and the brick-pattern guilloché outer ring maintain the collection's signature style. The re-engineered Calibre 135, visible through the sapphire caseback, features broader Geneva stripes and a dark ruthenium finish with gold-colored engravings, creating a subtle yet luxurious contrast.

A Deeper Look

These new G.F.J. interpretations showcase Zenith's commitment to preserving its heritage while embracing contemporary improvements. The brand's ability to blend traditional craftsmanship with modern innovations is a testament to its expertise. The Calibre 135, with its rich history and precision, continues to be a symbol of excellence.

As an enthusiast, I find it intriguing how Zenith has managed to create such exclusive and visually appealing timepieces while staying true to the original Calibre 135. The use of tantalum and yellow gold, each with its unique character, showcases the brand's versatility. These watches are not just timepieces; they are works of art, each telling a story of precision, craftsmanship, and innovation.

Zenith's G.F.J. collection is a reminder that sometimes, the most fascinating stories are those that blend the past and the present, creating a legacy that continues to inspire and captivate.

Zenith G.F.J. Tantalum & Yellow Gold: The Return of the Legendary Calibre 135! (2026)

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