What are the differences between the power system of the Jacob & Co.

What are the differences between the power system of the Jacob & Co.

Astronomia Four-Axis Tourbillon and its counterpart, the Three-Axis Tourbillon (Astronomia Revolution)? Below, we’ll clarify the differences in the power systems of the Three-Axis Tourbillon (Astronomia Revolution, or simply “Three-Axis”) and the Four-Axis Tourbillon (or simply “Four-Axis”), focusing on five key aspects: movement, mainspring, constant force, rotating platform, and winding method.

  1. Movement Model and Basic Structure

Three-Axis (Revolution): Movement JCAM48B, 434 parts, Jacob & Co.

Structure: Three-axis tourbillon (double-axis tourbillon + platform revolution as the third axis).

Four-Axis (Four-Axis): Movement JCAM54, 485 parts.

Structure: True four-axis (three-axis tourbillon + independent fourth-axis rotating support).

Platform reduced from three arms to two arms, reducing weight and energy consumption, maintaining a 36-hour power reserve. 2. Mainspring and Power Reserve

Similarities: Manual winding, single mainspring barrel, 36-hour power reserve, 21,600 vph.

Differences mainly lie in load and torque management:

  • Three-axis: Drives three axes + three-arm platform, moderate energy consumption.
  • Four-axis: Drives four axes + two-arm high-speed platform (60 seconds/revolution), higher speed, greater instantaneous load, stronger mainspring output torque, requiring more precise constant force control.
  1. Constant Force Device (Core Difference)
  • Both use 1/6-second high-frequency constant force (synchronized with the balance wheel frequency), but the design and load differ:
  • Three-axis (JCAM48B)
  • Patented “whip torque adjustment”: Releases energy every 1/6 second, buffering mainspring ripple.
  • Function: Protects the dual-axis tourbillon escapement, adapts to three-axis speeds (60 seconds, 15 seconds, 60 seconds). fake watch for sale

Quad-axis (JCAM54)

Next-generation high-frequency constant force: Integrated within the tourbillon frame, allowing for greater load capacity and faster response.

Suitable for quad-axis top speeds: 60 seconds, 18 seconds, 15 seconds, and 60 seconds, with the 15-second axis being Astronomia’s current highest speed, doubling the requirements for constant force stability (Jacob & Co.).

Officially described as the “fastest constant force mechanism in history,” it precisely charges and discharges every 1/6 second, offsetting the significant torque fluctuations caused by the high speed of quad-axis operation.

  1. Rotation Platform and Power Distribution

Tri-axis: Three-arm platform, 60 seconds/revolution; tourbillon at one end, the other end containing a timer, jewel, globe, and other counterweights.

Quad-axis: Two-arm platform, 60 seconds/revolution; retains only the tourbillon and timer, eliminating the jewel/globe, reducing weight by approximately 30%, lowering power consumption, and preventing sudden power drops at high quad-axis speeds.

  1. Winding and Time Setting Mechanism

Three-axis: Traditional crown winding + time setting (side of the case).

Four-axis: No crown; replaced by two 18K rose gold bow-shaped winding mechanisms on the case back, 180° rotating operation, suitable for a fully skeletonized design without a side crown, while also optimizing the power transmission path. best copy watch

Differences Overview (Table)

Table | Item | Three-Axis (Astronomia Revolution) | Four-Axis (Four-Axis Tourbillon)

Movement | JCAM48B (434 pieces) | JCAM54 (485 pieces)

Tourbillon | Three-Axis (Dual-Axis + Platform Revolution) | Four-Axis (Three-Axis + Independent Fourth Axis)

Platform | Three arms, 60 seconds/revolution | Two arms (weight reduction), 60 seconds/revolution

Constant Force | Whip-shaped torque adjustment | New generation high-frequency constant force (faster, stronger)

Speed ​​| 60s, 15s, 60s | 60s, 18s, 15s, 60s (higher speed)

Winding | Side crown | Double bow-shaped winding mechanism on case back

Core Objectives | High-speed three-axis | Four-Axis + Ultimate high-speed stability

In short: The four-axis is a “power-enhanced + architecture-upgraded version” of the three-axis – using the new JCAM54 The movement, weight-reducing platforms on both arms, stronger high-frequency constant force, and crownless winding support the fourth axis and higher speeds, while maintaining a constant 36-hour power reserve. luxury moon watch

AET REMOULD’s new watch, Lochagos, is a clever presentation of the Spartan spirit

German factory AET REMOULD released a new watch work, inspired by the Spartan spirit. The biggest difference for the brand is that this is their newly opened new product line. Previously, they mainly remodeled Richard Mille and Rolex Daytona. This new work is based on Audemars Piguet Royal Oak Offshore. A high-end watch.

The new work, titled “Lochagos”, is the first work in AET REMOULD’s “Spartan Series”. About Sparta, we can get a glimpse of it in many modern art and entertainment works, such as the movie “Spartan 300 Warriors”, the game “Assassin’s Creed: Odyssey” and the “God of War” series, which are all developed around Spartan warriors story.

Today, people’s interpretation of the Spartan spirit is more about conveying bravery, boldness and masculinity, and the large case size of the Lochagos watch fits this concept very well. The case, bezel, dial and bottom cover of the watch are all made of sapphire crystal, and the visual perception is very pure, which is also the consistent watch style of AET REMOULD.

In terms of design, the dial uses bright color graffiti – red and yellow. The chronograph scale ring on the edge of the dial, the edge and pointer of the small dial, and the central second hand are all covered with red, and irregular graffiti of red and yellow have been added to many places on the dial, making the overall look more flexible and delicate.

According to the official statement of AET REMOULD, the pattern on the edge of the small dial at 12 o’clock and 6 o’clock on the dial refers to the shield design of the Spartan warriors. In many descriptions of Spartan warriors, their shields are usually round wooden shapes about one meter in diameter, and the warriors will paint a layer of bronze on the outside and make some special marks. The geometric pattern used on the small dial of the Lochagos cheap watches for sale is one of the special marks of the Spartan warrior’s shield, and the black and yellow color scheme it matches also presents a majestic feeling.

It is worth mentioning that the AET REMOULD LOGO logo is added to the tail of the second hand in the center of the dial, and there is also the “AET REMOULD” brand logo next to the date window. Not only that, the AET REMOULD LOGO design is also added to the crown position, which is very personalized for the brand, and the combination of metal + crystal used in the crown further enhances the texture.

The watch is equipped with a fluororubber strap and is limited. As a brand new product line of AET REMOULD, the new Lochagos watch brings a very wild and flamboyant design style. Against the background of the pure sapphire crystal case, it can better highlight the tough and unrestrained character of the Spartan warrior. It is one of the best items of the year for large-sized watch lovers.

Corum Admiral 42 Chronograph New

In addition to the new generation Admiral 38 and 42 automatic models, Corum has also released three updated chronograph models. These new models feature a stainless steel case with a diameter of 42 mm and are equipped with the CO 984 self-winding movement.

The first features a white dial with rhodium-plated appliqués and colorful nautical flags. It comes with a stainless steel bracelet.

The other two have black dials with hour markers inspired by colorful nautical flags. Of the two watches, one comes with a stainless steel bracelet and the other with a black rubber strap. These automatic chronographs are water resistant to 100 meters and feature AR-coated sapphire crystal on the dial side.

The transparent sapphire crystal caseback provides a view of the self-winding movement, which provides a 42-hour power reserve after winding. luxury watch replica

The dial is made of brass and contains toffee-shaped hands for the hours, minutes, running seconds, 30-minute counter and 12-hour counter. Central chronograph second hand with Corum key weight.

technical details
Movement
CO 984 Automatic
Power reserve: 42 hours
Frequency: 4 Hz, 28’800 vph
Size: 12 1/2”’
Ruby: 37

Features
Chronograph
time
date
small seconds

case
Material: Stainless steel
Diameter: 42mm
Thickness: 11.60mm
Case shape: Dodecagon
Sapphire crystal, anti-reflective treatment watch
Crown Material: Stainless Steel
Screw-in stainless steel open back, sapphire crystal, anti-reflective treatment
Water resistance: 100 meters / 10 ATM

brass dial
Hour and Minute Hands: Dauphine • Rhodium Plated • Faceted • Skeleton • White Super Luminous Coating

bracelet
Stainless steel bracelet or rubber
Interhorn/Clasp: 21/18 mm
Clasp type: triple folding clasp watch
Buckle material: stainless steel

role model
References A984/04251 – 984.111.20/V705 AA52: stainless steel case, white dial, rhodium-plated appliques and multicolored nautical flags, stainless steel bracelet.
Reference A984/04252 – 984.111.20/V705 AN52: stainless steel case, black dial, rhodium-plated inlays and multicolored nautical flags, stainless steel bracelet.
Reference A984/04253 – 984.111.20/F371 AN52: Stainless steel case, black dial, rhodium-plated appliqués and multicolored nautical flags, black rubber strap, stainless steel buckle.