Longines Spirit Zulu Time 1925 automatic rose gold bezel black dial steel bracelet 39 mm

A tribute to the centenary of the first GMT watch

In 1925, Longines presented a world first: a wristwatch with two time zones. This visionary timepiece featured a maritime flag on its dial representing the letter “Z” – “Zulu” in the international phonetic alphabet – synonymous with GMT, still used today in aviation and the navy. To mark the centenary of this major innovation, Longines is paying tribute to this founding icon with the Spirit Zulu Time 1925, a refined anniversary edition that embodies both memory and modernity.

A symbolic design, combining elegance and precision

The Spirit Zulu Time 1925 captivates with its perfect balance of technical sophistication and refinement. Its 39 mm stainless steel case is topped by a bidirectional rotating bezel adorned with a circularly brushed 18K rose gold (5N) insert. This bezel, engraved with a 24-hour scale, allows a third time zone to be displayed. The choice of rose gold is no coincidence: it pays homage to the copper strip symbolizing the Greenwich meridian, embedded in the floor of the Royal Observatory in London. A subtle link between history and the present.

The intense and understated matte black dial features eleven rose gold-applied Arabic numerals and matching hands, all treated with Super-LumiNova® for optimal readability. Below the 6 o'clock index are five stars – the emblem of Longines performance – as well as a discreet date window and a tone-on-tone “1925 - 2025” engraving, simple and elegant. The transparent case back reveals a rose gold PVD oscillating weight engraved with a planisphere crossed by the Greenwich meridian, reinforcing the model's universal appeal.

An exclusive movement designed for discerning travelers

The Spirit Zulu Time 1925 is powered by the exclusive automatic caliber L844.4, developed by Longines for its most high-performance GMT watches. This movement is equipped with a silicon balance spring, ensuring increased resistance to magnetic fields – up to ten times greater than the ISO 764 standard – while ensuring long-lasting precision. Its 72-hour power reserve and COSC chronometer certification are testament to its high standards.

In addition to the traditional hour, minute, second, and date functions, this caliber displays a second time zone via a black GMT hand with a rose gold arrow, in conjunction with the 24-hour scale engraved on the bezel.

A timepiece delivered with two interchangeable straps

To suit all styles and occasions, the Spirit Zulu Time 1925 comes with two straps. The first, in stainless steel, features a double-security folding clasp, while the second, a black NATO strap with a pin buckle, offers a more casual and utilitarian alternative. Thanks to its quick-change system, the strap can be changed in a flash, without the need for tools.