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Greubel Forsey Nano Foudroyante EWT - Flying Tourbillon, Foudroyante and Chronograph

Thoughts on Greubel Forsey’s tenth Fundamental Invention

We know that Greubel Forsey’s replica watches for sale are big and rather extrovert, together with at least one but often a couple of or even four tourbillons, nevertheless their latest watch is actually modest in size and appearance. Yes… let’s think about it… The particular press release is mainly touting their very own 10th Fundamental Invention, the actual special energy-saving foudroyante in which saves nanojoules of energy. Privately, I have to say that the fast-spinning foudroyante hand is creatively annoying and distracting. Therefore , to be honest, Greubel Forsey’s 10 Fundamental Invention was achieved with frustration at the beginning - in my inbox. Still the mentioned case scale 37. 9 mm (from Greubel Forsey) made me specifically curious to take a closer check out what it is.

So… Greubel Forsey’s event is a lot smaller. That itself is big news (pun intended). I was surprised that is their first stop-watch, a fact that was barely pointed out in the press release! Moreover, it truly is their first flying tourbillon. However , after seeing so many FRIEND watches with multiple tourbillons, you’re hardly tempted by way of a “simple” flying tourbillon. We will see more about that afterwards. But all the same, a wrist watch chronograph from Greubel Forsey is already a real novelty having its modest dimensions, 37. 9mm in diameter and 15. 5mm thick. And since the brand name is not only known for adding plenty of tourbillons to their watches, fortunately they are known for spectacular, first-rate movements finishing. So , all in all, this would be of interest to serious collectors using a very generous budget.

But let’s make contact with the story behind this appropriately named “10th Fundamental Invention”. A foudroyante is a give that completes one total rotation in one second to show off fractions of a second. This kind of complication is often incorporated directly into chronographs to measure moment intervals more accurately and/or far more clearly than a separate mere seconds hand. But that is not the truth here, as the foudroyante hands is not connected to the chronograph and also cannot be stopped. It is therefore worthless in terms of reading the past time very accurately. Franck Muller Vanguard Crazy Hours Vegas Racing

Here, the particular long hand is coupled to the escapement (see further lower in the article for more details) and, through its tiny long hand dial, enjoyably rotates in a circular action above the flying tourbillon, although always remaining vertically driven.

If you allows me to digress a lttle bit, it is interesting to note this early foudroyantes were made throughout Val de Travers close to 1850 by Tixier (the great grandfather of indie watchmakers, now working with Dominique Renaud! ). These were furthermore not connected to the chronograph perform, but here they behaved as a simple seconds palm. Its mechanism was " simply" a hand attached to its 4-tooth escape tyre which rotates once for every second at a frequency regarding 14. 400vph.

Coming back to modern times and Greubel Forsey, the work they have completed power the foudroyante will be worth a closer look, even though little is mentioned in the blog post. The system seems to be derived from all their Nano released in 2017 (patent EP 3220207 A1), involving creating a display mechanism to get a system that is driven by just a first tooth and contains an additional tooth; an ultra-small items module, for driving typically the display directly or indirectly. The purpose is usually to allow for a reduction in size, and thus inertia and energy intake. EWT stands for Excellence with Wheel Technology, which requires clarification. Audemars Piguet Royal Oak Concept Tourbillon COMPANION

For foudroyante, the idea should be to apply these “nano-mechanics” right to the escape wheel (arbor), to beat 6 periods per second. In this fresh 2024 Foudroyante, the show is no longer lateral, so it is seen through a magnifying glass through an beginning in the side of the case.

Instead, it works with a dedicated set of gears, often the differential, to display the “dial side” - which is considerably more practical. Another challenge regarding GF was to create a aspect that was small and light adequate to embed it inside a flying tourbillon. One may possibly wonder whether it makes sense to feature such a component into a tourbillon designed to improve precision ~ which has always been a very significant topic for Greubel Forsey.

What result would the added “burden” in such a crucial part of the escapement have on the watch’s reliability? The tourbillon cage ultimately ends up having 142 parts! The brand name assures us that it is mild enough to ensure that the keeping time is not affected. If that have been true, they would never have removed ahead with it. After all, the complete idea of this “nano” principle is to demonstrate the ability to miniaturize mechanisms. So if I am certainly not completely convinced by the Foudroyante function here, the difficulty and technical feat on this flying tourbillon is outstanding in itself. high quality watches replica

The press release explains that you of the highlights of this 10th fundamental invention is a “revolution in energy management”. Usually, the foudroyante is an energy-consuming mechanism, and GF’s miniaturization is once again impressive.

However , the pr release mentions that the power reserve is merely 24 hours when the chronograph will be running, which sounds slightly disappointing. We had to check this specific with the brand… They advised us that the power reserve is in fact about 40 hours, nevertheless the press release mentions a “chronograph power reserve” - a day, to ensure perfect timekeeping efficiency, and they encourage users to be able to wind it correctly.

Now that we’ve referred the foudroyante, I want to speak about this wonderful chronograph itself; the 1st chronograph from Greubel Forsey! There’s almost no information inside the press release, other than it claims it’s a “manually wound flyback”. As if GF’s first wathe was just a minor issue… replica Breitling Endurance Pro watches

Greubel Forsey’s 1st chronograph should be big media, although what caught our eye was the succinct sizing, as the word “chronograph” is usually missing from the entire report. The movement is just 31mm in diameter, so it may be small enough to fit in to a nice mid-sized watch. That compact movement has 428 parts and is a personally wound column-wheel driven flyback chronograph with a vertical clutch i465 black. The movement offers a gorgeous look of typical top-level Greubel-Forsey finishing; gorgeous chamfered edges, faces and bases. There are several difficult internal angles, although they’re not too difficult at first glance. Perhaps the chamfers around the long curves are more hard to do by hand.

The case is made of white gold, with all the bezel and caseback manufactured from tantalum. The strap is definitely hand-sewn from nonanimal stuff and features a white gold flip-style clasp engraved with the brand’s GF monogram. replica Jacob & Co. epic x

Technical specifications - Greubel Forsey NANO FOUDROYANTE EWT

Case: Ø 38. 90 x 10. 49 mm thick -- Tantalum and white gold scenario, brushed and polished : Tantalum bezel and caseback with high domed sapphire ravenscroft - Sapphire crystal backside - Crown with built-in push-piece - Mode selectivo at 2' - 30m water resistance

Call: Multi-layered gold dial rapid Rhodium-plated and brushed instructions Engraved and lacquered hour or so markers and minute the path - Tourbillon visible by means of dial opening - Convex small seconds and timepiece counter with polished bevels - Nano-tourbillon on tourbillon

Movement: Under one building movement, hand-wound - Flyback chronograph with flying tourbillon escapement - 428 elements, 142 in the tourbillon only, 42 jewels - 21 years old, 600vph - Nano-tourbillon convex (1/6 seconds indication, regular vertical orientation) - Hand-applied Haute Horlogerie finishing, which includes gold chatons, hammer links, bevelled edges, straight combing, polished screws, etc . Strap: Hand-sewn nonanimal content strap - White gold green buckle, engraved with GIRLFRIEND logo