zelin0802 / February 7, 2023

U-Boat U-42 Bronze and Black Titanium Ref. 6947

Last week we introduced the U-Boat U-51 Chimera Bronze Edition. We decided to do a weekly U-Boat review and we chose this U-Boat U-42 B&B Ref 6947 as our second watch to review.

The case parts of this large 53mm U-42 (referring to the year that Italo Fontana’s (CEO) grandfather founded the company, not the size of the watch of course) are made of black-coated titanium. However, the size of 53mm does not seem to be anything special, just ordinary big.

But if you’ve ever met one of the Fratellos, you’ll know we’re not skinny and short. So we might not be that picture perfect reference when it comes to wrist size and talking about comfortable watches. Regardless, we think it’s fine on the wrist. If you’re interested in a 53mm U-boat, be sure to give it a try.

Anyway, size aside, we would say that the main aspect of this Italian timepiece that stands out is the matte black case combined with bronze details. Bronze & Black titanium is also a “working title” which makes perfect sense. The contrast is great, which is good for its readability. The crown, hook pin, bezel screws, bezel release lever and small numbered plate on the side of the case (limited to 300 pieces) are all in bronze. The hands are only available in bronze, as we’re guessing bronze is too heavy for the hands and (eventually) will cause dissatisfaction with the center pinion.

The dial, like the recently reviewed U-51 Chimera Bronze, has a two-layer design, one bronze and one black, for excellent visibility.

We love the level of detail on these next-gen U-Boat fake watches, but we also think some parts are a little overdone. Like mentioning three times that this watch is number 42 out of 300. We like the numbered versions (instead of – as we’ve seen on some IWC’s – 50 cases engraved with “One of 50”) but 3x 42/300 doesn’t make sense. But maybe that exaggeration does serve a purpose for the average U-Boat enthusiast.

The reverse side of the black titanium case shows the bezel release lever and the U-42 model name embossed. To prevent the bi-directional bezel from turning while diving (or otherwise rely on it), you first need to pull the lever to do so. Small bronze dots on the bezel show the exact minutes (15 – 30 – 45) of each quarter, and 00 (or 60) is a black polished pearl dot.

The back of the case is all black and there is no transparent bottom cover. Instead, there are some interesting engravings on the solid black caseback. replica watches for sale

And of course the watch’s limited edition number, reference number and model name, as well as the autograph of the company’s head, Italo Fontana.

As you can see, the crown of this watch is very special. After pulling the small trigger at 7 o’clock (or in the picture above, the little round bronze thing next to the lug), you pull the long (very long) crown. After that, it works just like any other regular winding and setting crown. The reason for having such a long crown is – in theory – an aspect of ease of use in all conditions, but we’re assuming U-Boat is targeting divers specifically with this gloved watch underwater. Other than that, it looks pretty cool.

Granted, we prefer the U-51 Chimera in bronze, but that’s just a matter of personal taste. Likewise, the finish and level of detail on U-42 B&B Ref 6947 is fantastic. The automatic movement is based on the ETA2824-2, which U-Boat refers to as the U-28. The movement has a power reserve of +40 hours and a beating rate of 28.800 BPH. Plenty of big brands are using solid no-nonsense movements.

zelin0802 / May 31, 2022

Richard Mille RM 50-02 ACJ Tourbillon Split Seconds Chronograph.

Richard Mille replica has been known to go to great lengths to make sure that when Richard Mille introduces a new watch, it excels in design, appearance, quality and craftsmanship. As we’ve seen in its short history, Richard Mille is a brand that doesn’t need any marketing gimmicks or celebrity endorsements to sell its watches. When they decide to work with someone, they are very careful who they choose and why. With few ambassadors and they are all part of elite sports such as tennis, Formula 1 and golf, Richard Mille made a name for himself in a short time. This week at the 2016 SIHH International Haute Horlogerie Salon, Mr. Richard Miller himself welcomed us to his booth to review one of SIHH’s most spectacular watches of 2016.

While to this day Richard Mille has only looked to the aviation world for inspiration while working with pioneering materials, the brand believes their watches have a lot in common with modern aircraft design. A name that needs no introduction, Airbus is a world leader in applying novel approaches to aviation design, especially aircraft manufactured by its Airbus Business Jets – ACJ division for individual customers. Sylvain Mariat, head of ACJ’s creative design studio, drafted the design for the RM 50-02 replica watch and worked closely with Julien Boillat and Salvador Arbona from RM’s R&D office. This new timepiece is like a truly remarkable luxury business jet built by ACJ to the exacting and personal needs of its clients, utilizing advanced,

Many components in the movement are coated with a unique special aerospace coating, often used to protect engine and chassis components from corrosion and environmental conditions. The end result is that the technical interior of the split-seconds chronograph movement is visually stunning, as are technical influences, such as the elimination of the initial jump of the chronograph seconds during starting and stopping, the new split-seconds assembly is also in titanium Made of metal In addition, the energy consumption of the chronograph is reduced by reducing internal friction. The button placement on the Richard Mille RM 50-02 ACJ Tourbillon is quite unique compared to most chronographs. By pressing the button on the right at 4 o’clock, the user can stop the double-second hand to read the intermediate time when the chronograph is activated. Press the button again to rejoin the chronograph with the double seconds hand, ready for the next measurement. On the left side of the case, two other buttons are used to start the chronograph and read the torque indicator.

Titanium Aluminium Alloy – TiAl – 50.10 mm x 42.70 mm x 16.50 mm – Very unique and novel case with a secondary white ceramic bezel designed to mirror the contours of ACJ’s typical window shape, with clearly visible layers The hull structure wraps around. This titanium-aluminium alloy, the same alloy used for Airbus jet turbine blades, must operate safely under the confluence of high temperatures and pressure fields, requiring a very strong and highly stress-resistant material.

In a debut for the brand, it is also the first time that the iconic Richard Mille screws on the outer edge of the bezel have been replaced with Torq Set® screws, whose head grooves are uniquely shaped, inspired by the wavy pattern on the crown of a jet engine. Airbus company logo.buy replica watches

The case of the RM 50-02 is made of titanium aluminum (TiAl). This intermetallic alloy has properties between metals and ceramics, with the physical properties of metals and mechanical properties similar to ceramics. It is extremely rigid and much lighter than classic titanium. This titanium-aluminium alloy, the same alloy used for Airbus jet turbine blades, must operate safely under the confluence of high temperatures and pressure fields, requiring a very strong and highly stress-resistant material. The main difficulty in preparing TiAl is that the melting points of its two main components, titanium and aluminum, are quite different. Continuous heating in the plasma furnace ensures good homogeneity of the TiAl ingots used to machine the RM 50-02 shell.

This high-quality ceramic is based on alumina powder injected at 2,000 bar pressure. This high pressure injection increases stiffness by 20-30% and minimizes material porosity. ATZ has a reputation as a particularly scratch-resistant material (1,400 Vickers hardness) and has a constant color. Second only to diamond, it is one of the hardest materials in the world.

A long and difficult machining process using diamond tools is required to create this complex form of bezel and to impart the final matte surface finish. These qualities make it an ideal material for the front of a watch, an area that is highly susceptible to shock and wear. The case is assembled with 20 Torq grade 5 titanium screws and 316L stainless steel wear washers.

dial
The new Richard Mille RM50-02 ACJ Tourbillon split-seconds chronograph movement also features a very unique new dial layout. The dial features a power reserve indicator – 70 hours between 11 o’clock and 12 o’clock, and a torque indicator at 2 o’clock, providing information on the tension of the mainspring to optimize the chronograph function. Located at 2 o’clock, this torque indicator provides information on the tension of the mainspring, thereby optimizing the chronograph function of the movement. Below 53 dNmm, the spring is considered too slack, while above 65 dNmm, excessive spring tension can adversely affect the operation of the mechanism, otherwise it can actually jeopardize it.

In a similar fashion to a car gearbox, the crown function indicator located just below the 3 o’clock position allows the winding, neutral and hand setting positions to be seen when the crown is pulled out. Each position is indicated by a pointer showing the following functions:

“W” means winding, “N” means neutral, and “H” means pointer, that is, time setting. In addition, there is a 60-minute chronograph at 9 o’clock and a retrograde seconds register at 6 o’clock.

On the back, the RM 50-02 movement is fully visible through the back of the display case. Equipped with a split-seconds chronograph, this hand-wound tourbillon movement features a skeletonized titanium baseplate. The baseplate is constructed from grade 5 titanium, a biocompatible, highly corrosion-resistant and very hard alloy that allows the gear train to operate with ease. The alloy is 90% grade 5 titanium, 6% aluminum and 4% vanadium. This combination further enhances its mechanical properties, which explains its frequent use in the aerospace, aviation and automotive industries. The baseplate of the RM50-02 movement is optimized to achieve an extremely high weight/drag ratio. The bridges of the RM50-02 movement are made of grade 5 titanium. give more depth to the movement, luxury fake watches

One of the new features developed for the split-seconds tourbillon RM 50-02 is the almost complete elimination of the initial jump of the chronograph seconds. In addition, the development of a new generation of split-seconds components means that the energy consumption of this function can be reduced by approximately 50% by reducing friction inside the movement and eliminating the inertial jump of the chronograph hands during stopping and starting. This is achieved through research that focuses on the work of the arm by the minute.

In addition, the new Richard Mille RM 50-02 movement is equipped with a modular time-setting mechanism mounted on the case back. This mechanism provides several advantages for longevity and maintenance. Because the assembly is mounted outside the movement, the time-setting assembly can be altered during possible defects or maintenance without affecting the integrity of the baseplate. Installing and removing the module from the back does not require removing the hands and dial. The design and execution of the watch demonstrates a complete conceptual approach to movement, case and dial. As a result, everything was built to extremely exacting specifications, using the analytical engineering approach used in Formula 1 car design, where chassis and engine development were fully coordinated. For example, the case ring is no longer used, and the movement is mounted on a chassis-mounted rubber (ISO SW) secured by 4 titanium screws. Features such as these are evidence of uncompromising craftsmanship.

The watch is worn on a breathable white rubber strap with a classic Richard Mille double folding clasp. The buckle is made of brushed titanium.

The watch features a tonneau-shaped case that fits its size on the wrist and is extremely comfortable to wear. Like any other Richard Mille timepiece we’ve reviewed, this is one of those best replica watch site you don’t want to take off. Its looks, inner workings and craftsmanship behind it make Richard Mille one of our favorite brands, and one that is always at the forefront of innovation. Another amazing launch from Richard Mille will make our SIHH 2016 even more memorable.