Ulysse Nardin Blast Moonstruck: The Watch That Puts the Stars Back at the Heart of Watchmaking

The greatest advances in watchmaking have always sprung from mankind’s desire to understand the sky. Before becoming objects of prestige, watches were instruments designed to measure time, guide navigators and track the movements of the stars. Few manufactures can claim such closeness to this history as Ulysse Nardin.

In unveiling the new Blast Moonstruck, the Le Locle manufacture is not simply presenting a new complication. It revives one of the most fascinating chapters of its heritage: astronomical watchmaking. A discipline in which mechanics no longer merely indicate the hours, but seek to reproduce the very motion of the universe. This legacy, deeply rooted in the house’s identity, traces back to the astronomical watches of the 19th century, designed for scientific observation and maritime navigation, before experiencing a new resurgence in the 1980s.

The Blast Moonstruck thus appears as the culmination of extensive reflection, where the poetry of the stars meets the excellence of contemporary mechanics.

A Meeting That Changed the History of Ulysse Nardin

Some encounters permanently alter the destiny of a manufacture.

In 1983, Rolf Schnyder, having just become owner of Ulysse Nardin, discovered the work of a young Swiss watchmaker, mathematician and astronomer: Dr Ludwig Oechslin. Fascinated by an astronomical clock the latter had created, he set him an almost impossible challenge: to miniaturise such complexity into a wristwatch.

Two years later, the Astrolabium Galileo Galilei was born, recognised as the world’s first astronomical wristwatch. It was followed by the Planetarium Copernicus and then the Tellurium Johannes Kepler, giving rise to the legendary “Trilogy of Time”, which became one of the most remarkable achievements in contemporary watchmaking.

Forty years later, the Blast Moonstruck stands directly in this lineage.

A Remarkably Simple Reading of the Sky

What immediately impresses about the Blast Moonstruck is not only the quantity of information it displays, but the way in which it is presented.

Ludwig Oechslin has always championed a simple philosophy: complexity should remain hidden within the movement, never in the reading of the watch. This approach remains at the heart of the Blast Moonstruck, which brings together five astronomical indications within a particularly intuitive display.

The timepiece indicates, with remarkable coherence:

• a very high-precision moon phase, requiring correction only after 40.3 years;
• the days of the lunar month;
• the tide coefficients;
• a Worldtimer covering all 24 time zones;
• the position of the Sun and Moon around the globe.

Far from simply stacking complications independently, the watch makes them interact with one another. Each indication follows naturally from the relative movements of the Earth, the Sun and the Moon, offering a coherent representation of celestial mechanics.

Observing the Earth Like an Astronomer

The architecture of the Blast Moonstruck rests on a geocentric representation of the celestial system.

At the centre of the dial floats a three-dimensional representation of the Northern Hemisphere, engraved beneath an imposing domed sapphire crystal. All around, the various displays continuously track the apparent movements of the Sun and the Moon, exactly as they are observed from our planet.

The Sun naturally becomes the reference point for the Worldtimer, allowing instant reading of all twenty-four time zones thanks to a rotating disc complemented by a day/night indication.

The Moon, for its part, travels along its own orbit, faithfully reproducing its actual cycle. Even more remarkable, its lit portion remains constantly oriented towards the Sun, just as in astronomical reality, a feat rarely seen in watchmaking.

Even the tide indication makes perfect sense here. It results directly from the relative position of the Sun and the Moon, recalling the historic ties Ulysse Nardin maintains with the maritime world.

A Movement Conceived as a True Astronomical Calculator

To bring this celestial mechanism to life, Ulysse Nardin relies on its in-house calibre UN-106.

Made up of 338 components and 42 jewels, this automatic movement integrates the full range of astronomical functions within a unique architecture. It runs at 28,800 vibrations per hour and offers a 50-hour power reserve.

The movement also benefits from technologies the manufacture has mastered for over twenty years, notably its silicon escapement and hairspring produced by SIGATEC. This material, particularly resistant to magnetism and wear, contributes to the calibre’s long-term precision and reliability.

Another particularly welcome detail for such a complex timepiece: the local time can be adjusted independently via pushers integrated into the case, without disrupting the astronomical calculations or the other indications.

A Spectacular Architecture in the Service of Mechanics

The Blast collection today serves as Ulysse Nardin’s aesthetic laboratory.

With its imposing 45 mm case, this new Moonstruck pairs a black DLC-treated titanium middle case with an 18-carat rose gold upper section. The numerous alternating satin-brushed, polished and faceted surfaces reinforce the sculptural character of the whole.

The spectacular domed sapphire crystal dominates an aventurine dial whose shimmer evokes a starry sky. Above it, the three-dimensional representation of the Earth appears to float, while a rose gold ring engraved with the days of the month adds further depth to this remarkably architectural construction.

The result produces a striking, almost hypnotic three-dimensional effect, turning every glance at the dial into a genuine contemplative experience.

A Watch That Celebrates the Original Vocation of Watchmaking

At a time when much of the industry multiplies aesthetic variations around well-known complications, Ulysse Nardin chooses a far more ambitious path.

The Blast Moonstruck does not seek to impress solely through its level of finishing or the nobility of its materials. It recalls that watchmaking was born from the observation of the sky, and that the greatest mechanical advances were long driven by the desire to understand the movements of the stars.

Produced in just 20 pieces, this creation naturally appeals to a handful of privileged collectors. But its true value far exceeds its rarity. It embodies a philosophy of watchmaking in which technique, science and poetry become one.

With the Blast Moonstruck, Ulysse Nardin does not merely look towards the stars. It reconnects with one of the noblest traditions in its history and demonstrates, once again, that the finest complications are often those that remind us of our place in the universe.

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