zelin0802 / March 4, 2026

New Jacob & Co. Bugatti Chiron Tourbillon Watch

Jacob & Co. unveils the Bugatti Chiron Sapphire Crystal Watch, boasting exceptional clarity and color reproduction.

The case, crafted entirely from sapphire crystal, represents the pinnacle of contemporary haute horlogerie. Few watchmakers possess the capability to create completely transparent sapphire crystal cases, and even fewer are willing to invest the time and effort required. Jacob & Co. is one of them. The Bugatti Chiron Sapphire Crystal Watch underwent months of meticulous preparation, beginning with developing a perfect fit between the watch’s unique design and the sapphire crystal. After finalizing the design and manufacturing process, months of material processing, precision machining, and hand polishing culminated in the case, showcasing all 578 hand-decorated and assembled components of the JCAM37 manual-winding movement, including the exclusive automatic movement suspended within the case. The development of the manufacturing process alone took several years and continues to be refined and perfected.

Technological Innovation

The sapphire used in this watch case is synthetic, developed in-house. First, alumina powder is heated to 2200 degrees Celsius, causing it to crystallize into rough sapphire. Crucially, this material cannot melt; instead, it forms a sintered body on a base and immediately solidifies. This process is repeated, layer by layer, until a carrot-shaped component is formed. Then, a proprietary process is used to shape the sapphire into blocks. replica watches for sale

To create the color, the manufacturer adds a proprietary mixture of rare earth elements, metals, and other minerals—a process known as “doping.” However, to achieve a rich blue hue across the entire case, more additives are needed. This increases the risk of the sapphire crystal losing its chemical stability. This is a trade-off process, sometimes requiring multiple repetitions to achieve the desired hue, thus increasing manufacturing costs.

The completed rough sapphire is then cut to the required size for the watch case. The real challenge lies in polishing the rough stone into the Chiron watch case. Initially, this process was automated. The Chiron’s unique tonneau-shaped case (57.8 mm x 44.4 mm) further complicates this already challenging process. The case is not a single curved surface, but a combination of various geometric shapes, including cylinders, spheres, and curved surfaces, as well as a horseshoe-shaped end inspired by Bugatti’s iconic grille.

Sapphire crystal is also extremely hard, with a Mohs hardness of 9. Very few materials are harder than it, including diamond with a hardness of 10. Therefore, the case’s creation requires the use of diamond cutting and polishing tools. Wholesale replica watches

The most crucial step in the entire production process is polishing. Polishing gives the sapphire a smooth texture and a transparent luster. Due to the delicate and numerous steps involved, it must be done by hand. Polishing each case can take anywhere from 80 to 120 hours. Furthermore, the case back, crown, three crowns, horseshoe-shaped Bugatti grille, and other components also require individual cutting and polishing to ensure dimensional accuracy and uniform transparency. Each component, and each shape, has its own unique polishing technique. The polishing angles of the inner and outer surfaces of the case differ. However, the quality of all components, including transparency, must remain consistent. Furthermore, as the case surface becomes smoother, the craftsman must progressively reduce the roughness of the diamond polishing tools. This is also a proprietary production process.

There are numerous risks involved in the polishing process. Gemstone fragments may fall out. Even sapphire, with its extremely high hardness, is prone to breakage because the harder the material, the less elastic it is. Additionally, “optical distortion” can occur, resulting in streaks and other optical imperfections, usually caused by the use of substandard tools and poor polishing techniques.

If any of these issues occur, the process, which can take months, will have to start all over again.

If everything goes according to plan, you will have a smooth, completely transparent, and colorful sapphire crystal case that showcases every aspect of the Bugatti Chiron movement, including its groundbreaking engine and one-minute tourbillon.

The Concept of the Watch: The Jacob & Co. Bugatti Chiron Sapphire Crystal Watch continues the design philosophy of the series, blending the dual DNA of a supercar manufacturer and a luxury jewelry watch brand. This timepiece features a sapphire crystal case, designed to allow the wearer a clear view of all 578 hand-decorated and assembled components of the JCAM37 manual-winding movement. Discount replica watches

This includes a unique, fully functional replica of the Bugatti W16 engine. This engine is suspended within the case by four struts resembling Chiron shock absorbers. With a gentle press, this “engine” begins to run, with 16 pistons pumping and two turbochargers rotating. Other details of this exceptional movement include a rotating 60-second flying tourbillon, operating at a 30-degree angle, clearly visible through the replica Bugatti horseshoe grille.

Inspiration: The Bugatti Chiron watch series originated from a collaborative concept between Jacob & Co. and Bugatti, aiming to infuse the exhilarating passion of the iconic Bugatti W16 engine into the watch’s design. Every detail of the timepiece pays homage to the Bugatti Chiron supercar.

This timepiece features a unique streamlined case, inspired by the sleek lines of the Chiron sports car, while the sapphire crystal used for replication is extremely difficult to replicate. The “engine block” on the case is designed to simulate the operation of a Bugatti W16 engine and can be activated on demand, presenting a beautifully animated engine sequence. This is the first time a luxury watch has featured a fully functional car engine animation. The movement is secured with screws, its design inspired by car shock absorbers. Even the power reserve indicator at 9 o’clock has been meticulously designed, cleverly mimicking the logo of a GM gas pump. The case back is designed like a car dashboard, equipped with two crowns and a pusher for winding, setting the time, and activating the engine animation.

Creation, Invention, and Construction: Bugatti and Jacob & Co. officially established a partnership in 2019 to create unique and unprecedented timepieces that not only embody the spirit of both companies but also push watchmaking to unprecedented heights. www.whereguidewatch.com

Jacob & Co. Bugatti Chiron Blue Sapphire Crystal Technical Specifications
Reference No. BU210.80.AM.UA.BBRUA – A One-of-a-Kind Creation

Movement

Movement: Manufactured by Jacob & Co., manual winding JCAM37
Dimensions: 41.7 x 36 mm
Height: 15.60 mm
Components: 578
Jewels: 51
Shock Protection System: Incabloc
Power Reserve: 60 hours
Frequency: 21,600 vibrations per hour (3 Hz)
Functions: Hours, Minutes
1-minute tourbillon cage tilted 30° (top set with diamonds)
“W16 engine” in sapphire cylinder block
On-demand animation (right pusher) generates piston and crankshaft rotation
Power reserve indicator at 9 o’clock.

Case

Dimensions: 57.8 x 44.4 mm
Height: 21.5 mm
Material: Anti-reflective sapphire crystal
Case back: Blue sapphire crystal
Crown and pushers: Sapphire crystal and 18K rose gold
Water resistance: 30 meters (3 ATM)
Dial

EB logo; Blue index finger; Rose gold hands with blue tips
Winding and time setting:
Left crown: Time setting
Central axis: Movement winding (clockwise) and movement (counter-clockwise)
Strap and clasp

Strap: Rubber
Clasp: 18K rose gold and titanium folding clasp

zelin0802 / December 26, 2025

Audemars Piguet Royal Oak Offshore

The fake Audemars Piguet Royal Oak Offshore collection is a highly distinctive and sporty watch series. Here’s a detailed introduction:

Series Features:
Unique Design: Retaining the iconic octagonal bezel and exposed screws of the Royal Oak series, this collection features a larger case, a robust waterproof gasket, and a colorful rubber crown, resulting in a rugged and bold style.

Rich Material Utilization: In addition to common materials like stainless steel and precious metals, the collection incorporates new materials such as titanium, carbon fiber, and ceramic to meet the diverse needs of users for material texture and performance. high quality cheap watches

Diverse Dial Designs: Many dials feature a “Tapisserie” pattern, with some models employing a “Mega Tapisserie” or “Petite Tapisserie” pattern, complemented by luminous hands and hour markers, combining aesthetics and practicality.

Diverse Dial Designs: Dials often feature a “Tapisserie” pattern, with some models employing a “Mega Tapisserie” or “Petite Tapisserie” pattern, paired with luminous hands and hour markers, combining beauty and practicality. Convenient Strap System: Some models feature an interchangeable strap system, such as the 26238OR.OO.2000OR.01 model, which comes with an 18K rose gold strap and a complimentary blue rubber strap, allowing users to easily change straps for different occasions.

Movement Configuration: The Royal Oak Offshore series is equipped with a variety of high-performance movements, such as the Calibre 4404. Taking the 26238OR.OO.2000OR.01 model as an example, this movement features a flyback function, 40 jewels, automatic winding, a 70-hour power reserve, and a frequency of 4 Hz (28,800 vibrations per hour).

Classic Model: Ref. 25770SN “Devil’s End”: Designed in collaboration with Arnold Schwarzenegger and Audemars Piguet, this best luxury cheap watch was worn by Schwarzenegger in the film Devil’s End, making it a classic piece in the series.

Ref. 25940SK: Launched in 2001, featuring a “Mega Tapisserie” dial with a rubber bezel and strap, it broke sales records upon release.

Ref. 26238OR.OO.2000OR.01: A 42mm 18K rose gold case with a blue “Petite Tapisserie” dial, powered by the Calibre 4404 automatic flyback chronograph movement, combining luxury and practicality.

Market Position and Influence: Since its launch in 1993, the Royal Oak Offshore series has seen continuous sales growth. It is not only a key representative of Audemars Piguet but also holds a significant position in the global watch market, highly favored by luxury cheap watch enthusiasts who value individuality and quality. It also frequently appears in film and fashion, enjoying high brand recognition and influence.

zelin0802 / August 19, 2022

U-Boat

A replica swiss watches brand from Italy that has been producing watches since the early 00s. All clocks are handcrafted and designed by Italo Fontana.

The company is located in a villa in the countryside, surrounded by the mountains of Gragnano. Just 15 minutes from Lucca, the ancient medieval walls of the heart of Tuscany. A place of inspiration for Italo Fontana, his creativity comes from the combination of surrounding objects, atmospheres and specific places. Every U-BOAT creation is a reflection of the values of the Tuscan region.

In just a few years, U-BOAT has managed to open several stores around the world with its own brand and now also into Ditur. An exciting brand with many unique watches, all housed in their own velvet cases, which shows that all U-BOAT fake watches have no compromise in quality.

Resence of the poor?
Is U-Boat Darkmoon ‘The Rebirth of the Poor’? We’ll let you judge. What we’re saying is that oil-filled watches have actually been around for decades, albeit a specialized and exclusive subset of timepieces…and of course the Ressence, as well as anti-fog, non-reflection watches for underwater missions such as the Sim Nice user experience. The rest, including timepieces like the French Beauchat Genesis 4000 HPS or the Hydroil-filled Bell & Ross Hydromax 11100M, make up an exclusive club. But none, not even used examples, are available anywhere near the price of U-Boat’s latest Dark Moon.

That Iconic Compensation Bubble
As mentioned, the moving compensation bubbles on Darkmoon’s (and Capsoil’s) face are a constant reminder of a truly iconic Movado Museum watch.

Why are you there? The bubbles that elicited strongly polarized reactions from watch forum participants weren’t just the aesthetic indulgence of designers doing nothing. Instead, despite the ability to keep bubbles in place for hours, for an important technical reason. It provides compensation as the oil expands or contracts with temperature changes within the manufacturer’s recommended operating range of 0° and +60°C.

We can only speculate how many Darkmoon wearers will be tempted to try to place the bubble directly above the watch’s center post.

Who will the dark moon attract?
Is this a unisex U-Boat watch? While U-Boat offers women-specific watches, such as its 8474 Rainbow Ladies Mother of Pearl, it’s no secret that its primary audience has traditionally been young men.

However, current fashion-forward watch wear often sees larger men’s watches add brilliance to women’s wrists. According to U-Boat’s UK importer, the Darkmoon’s 44mm case is smaller than it’s suggested size, absolutely wowing both men and women.

One of the best U-Boat watches for women
Make no mistake; this is arguably one of the best U-Boat watches for women out there. After all, why reserve such a visually appealing horological object for boys, especially in a world where women love to rock men’s Rolexes and other luxury timepieces?

Apparently, the brand chemistry that made U-Boat so beloved by male celebrities like Sylvester Stallone and Nicolas Cage also had a powerful influence on its female counterparts like Israeli model Bar Refaeli and actress Lindsay Lohan. How about you?

go to the dark side
This is the U-Boat Darkmoon. Do you love watches with strong retro nautical stories, unmissable visual impact and conversation-inducing oil-filled technology? If so, this piece might be for you with its captivating design and engaging “Made in Tuscany” story.

Check out Jack’s YouTube video and feel his inspiration for these breathtaking timepieces. Then browse our collection of U-Boat men’s and women’s watches to discover the wonderful dark side of the Darkmoon collection for yourself or as a gift for someone special.

Within days, you’ll be able to open that gorgeous velvet-coated box, admire Florence’s iconic Old Bridge from a luxurious cleaning cloth, and strap on your very own U-Boat Darkmoon watch. Let’s imagine!

zelin0802 / July 18, 2022

Subverting watchmaking norms, this Freak X is dazzling

The Ulysse Nardin Fantasy series is already synonymous with subversion and innovation in the field of watches, and the Freak X watch launched in 2019 is positioned to be young and lower the threshold to allow watch friends to start better. Everyone is welcome. When I introduced the silicon dial style before, I happened to chat with you that there are currently two special dial designs in this series, one is silicon inlay, and the other is black and white camouflage. This black and white camouflage plate, today I will introduce it to you in detail.

Before introducing the watch, let’s talk about how the black and white camouflage of this Freak X in Athens came from? Ulysse Nardin has a deep historical relationship with the sailing world and the navies of many countries. This watch is familiar to all of you. The dazzling camouflage is also known as zebra painting. It was the first ship camouflage adopted by British warships during World War I. Camouflage, with dazzling camouflage patterns to cover up ships, but its purpose is not to “stealth” in the sea, like jungle camouflage, you can’t find it in the woods, making the battleship invisible at sea, it can’t be achieved, Therefore, the zebra camouflage is to make the enemy unable to distinguish, the outline of the hull, the distance, speed and heading of the ship, and the direction of the bow and stern from a long distance. However, although it does reduce the sinking rate of the battleship, this eye-catching design also increases the probability of the battleship being attacked, so we can also understand that the significance of Athens using this coating is to make the watch more eye-catching.

The 43mm case is made of titanium. Athens uses a DLC black coating for it and is decorated with a brushed process. This side of the case has a classic nameplate design, engraved with a separate digital code, and you can see the watch. Limited edition of 30 pieces.

The difference between the Freak X and the Freak whimsy that can be distinguished at a glance is the added crown at 3 o’clock. The water resistance of the entire watch is 50 meters.

The black and white zebra pattern on the dial of the watch, reinterpreted by the design department with geometric beauty, is indeed very modern art. Ulysse Nardin copy also uses three different polishing and decoration techniques to make it, including lacquer decoration, Electroplating and laser engraving for the ultimate dazzling effect.

Freak X’s Carrousel bar movement rotates 1 revolution per hour, which is used as a minute hand indication. The short lower bridge plate is an hour indication, and the entire disk surface will also rotate with time. On the Carrousel mechanism, we can also clearly see the large, ultra-light silicon balance wheel with nickel counterweight and stabilizing micro silicon flakes.

Freak X’s luminous effect is often a link that everyone will ignore. In fact, it does a good job. As you can see from the luminous effect in the picture, it belongs to the sci-fi style of Freak X.

In terms of movement, the watch is equipped with the UN-230 automatic movement produced in Athens, which is based on the UN-118 automatic movement with the addition of the Carrousel module. We will often say that the movement is assembled with the UN-118 movement. And the UN-250 movement of the Freak Vision and Transcend watch, the advantages of these two movements actually refer to the fact that the UN-230 uses diamond silicon crystal technology on the one hand, and a layer of diamond film is plated on the silicon parts, which is better than no plating. The silicon is more resistant to wear, and has better hardness and smoothness. At the same time, it overcomes the problem that silicon is easy to break during processing, and inherits the large silicon ultra-light balance wheel from UN-250. The movement data is 21,600 times per hour, and the full chain dynamic storage can provide 72 hours.

The original luxury copy watches offers a choice of black and white straps, a black hollow rubber-coated leather strap, and a white hollow calfskin strap. We photographed this, but changed it to a black alligator leather strap, which is also very good. Fits the watch.

This Freak X dazzling camouflage watch, I think it is in terms of visual effects, even if you don’t have to cooperate with popular modern artists like other brands, Athens can play with its own understanding of aesthetic design. This kind of expressive modern art effect, so this piece of whimsy freak X has a unique charm and is the best carrier to show the wearer’s unique personality. The metallic properties are laid out here.