Greubel Forsey GMT Quadruple Tourbillon

The Greubel Forsey GMT Quadruple Tourbillon features a new dial design with a titanium case in a modern blue hue. However, while this latest example of haute horlogerie is brand new, it maintains the brand’s reputation for excellence in processing and traditional handcraftsmanship.

La Chaux-de-Fonds is a city often referred to as the center of Swiss watchmaking, located in the Jura Mountains at an altitude of more than 1,000 meters. Greubel Forsey’s watch factory is located just outside the city, on a raised pasture. Its location acts like a metaphor, reflecting its place in the height of rarity in haute horlogerie.

Greubel Forsey is the antithesis of mass production, producing only a limited number of watches each year, all manufactured to the most exacting standards. At the heart of the corporate paradigm are two main characteristics. First, the brand handcrafts watch components, often using traditional labor-intensive techniques. Second, the desire to innovate is everywhere, as long as it leads to a better experience for the company’s customers.

Over the years, the eponymous duo, Robert Greubel and Stephen Forsey, have invented many ingenious mechanics. One such mechanism is the “quadruple tourbillon”, which consists of four tourbillons connected to a spherical differential, averaging the chronometric rates of the four tourbillon cages. The benefit of this arrangement is that it enhances the timing performance of all four adjustment mechanisms.

Today, the brand released the Greubel Forsey GMT Quadruple Tourbillon Titanium, which, as the name suggests, takes advantage of the company’s “second invention”, the Quadruple Tourbillon. This is not the first time the Swiss brand has made a GMT quadruple tourbillon, in fact, it has made several variants in the past. However, this new model contains many differences.

The dial of this new model adopts a new layout and color scheme, which makes the watch look fresher and more cohesive. The feature list remains the same. These include hours and minutes, small seconds, 72-hour power reserve, GMT second time zone, 24-zone world time, rotating titanium ball with world time, city watch summer time and day and night.

Surprisingly, although the Greubel Forsey GMT Quadruple Tourbillon looks neater than its predecessors, the size of the case has been enlarged and is now 46.5mm in diameter (previously 43.5mm). However, while the size of the watch has increased, it should be lighter as the case is made of titanium.

Greubel Forsey doesn’t specify the grade of titanium used, however, based on experience, I suspect it will be a grade 5 that is widely regarded as the best. The problem with using titanium is that it is very difficult and time consuming to machine. The machining cost of a titanium case is much higher than that of steel or precious metals. In addition, polishing titanium to a shimmering, flawless conclusion is extremely challenging.

At this point, it sounds like Greubel Forsey is just making his life a little heavier. However, when a brand overcomes these challenges, titanium offers some useful benefits. Grade 5 titanium is lightweight, strong, corrosion-resistant, anti-magnetic and hypoallergenic, all useful properties in watchmaking.

Based on initial impressions, the Greubel Forsey GMT Quadruple Tourbillon looks modern, a little understated than its predecessor, but delicious. Oh, sorting? Do you really need to ask?

Titanium and blue, a new chapter for the GMT Quadruple Tourbillon

The GMT Quadruple Tourbillon has only one chapter. Today, Greubel Forsey writes the second article and presents 11 versions of this groundbreaking titanium watch. With new materials, new colours and new finishes, this revolutionary modern limited edition pushes the GMT Quadruple Tourbillon into uncharted territory and firmly marks the beginning of a new chapter.

A breakthrough in timepieces

The GMT Quadruple Tourbillon is radical in every way. First, by its construction. The quadruple tourbillon is Greubel Forsey’s second fundamental invention, whose mission is to average out the positional errors due to gravity in all situations, especially in stable watch positions.

To achieve this, the original tourbillon has been elevated to its full potential: inclined 30°, doubled and then quadrupled. As a result, two synchronized double tourbillon 30° mechanisms, in which the first cage is inclined 30° and rotates in one minute, nested in the second horizontal cage, completes a full rotation in four minutes. The spherical differential transmits the average timing rate of the four tourbillon cages, improving the overall timing performance of all regulating mechanisms.

A new experience on the wrist

The GMT Quadruple Tourbillon is radical in design. With this limited edition in titanium with a striking blue hue, Greubel Forsey offers an unexpected alternative to the precious metals traditionally favored by high-end watchmaking. Titanium has many properties: it is stronger and lighter than steel, while also being extremely resistant to corrosion and magnetic fields. replica men watch

The new titanium case is more than a third lighter, giving the wrist a new, modern and dynamic feel, which inspired the choice of a new rubber strap to complement this new modern identity.

Hand-finished excellence

The toughness of the GMT Quadruple Tourbillon titanium alloy of the 46.5 mm case presents significant machining and hand-finishing challenges for the components made from it, such as the GMT pushers or the folding clasp or the crown. In addition, new hand-finished details have been created especially for this watch. For the first time, the circular grained hour circle with polished bevels and the 72-hour chronograph power reserve display is presented in bright blue. The motherboard is now matte with polished bevels, countersunk and straight grained sides, and comes in a grey finish.

between earth and sea

Planet Earth, located near eight o’clock, shone with new light in its blue uniform. A Greubel Forsey original from ten years ago (2011), a rotating globe that simultaneously displays several different time zones: on the dial side, with a 24-hour ring around the globe, day/night indication and case On the back, the respective time zones of the 24 major cities are displayed, with a distinction between cities that use daylight saving time (light background) and cities that do not (dark background).

A sapphire crystal window around the equator completes the wholesale watch, offering a complete view of the Earth in motion, with its continents immersed in deep blue waters, complementing the fine blue finish of the power reserve, hour ring and strap.