Showing posts with label ARNOLD & SON. Show all posts
Showing posts with label ARNOLD & SON. Show all posts

Monday, June 23, 2025

ARNOLD & SON – CHRONOMETRY Nebula 40 Steel Blue Edition

ARNOLD & SONCHRONOMETRY Nebula 40 Steel Blue Edition - 2025

Click, to see the large size. BIG FOTO  

 NEBULA 40 STEEL BLUE EDITION
A HARMONIOUS RADIATING SKELETON

Click, to see the large size. BIG FOTO 

Elegant in its symmetry. Refined in its detail. Relevant in its strong horological focus. Nebula 40 Steel is a one-of-a-kind skeleton timepiece in which Arnold & Son combines style and substance, movement and design. 

Click, to see the large size. BIG FOTO 

The star-shaped arrangement of its seven bridges and even its name, Nebula, create a coherent system: the radiating concept that governs the form of Nebula 40 Steel and determines its structure, topography and depth.

Click, to see the large size. BIG FOTO  

 Following the launch of Nebula 40 Steel in black and a golden edition celebrating 260 years of John Arnold’s legacy, a blue version is joining the variations on this skeletonised timepiece.

CONVERGENCE

Radiating towards the centre, the bridges are arranged around the edge of the main plate, itself formed of intersecting curves. These bridges meet in the middle to give Nebula 40 Steel its structural integrity and provide additional anchor points for the movement’s components.

Click, to see the large size. BIG FOTO 

Just as each bridge follows the last in quick succession, the organs inside the A&S5201 calibre are arranged in a peripheral kinematic chain. 

Click, to see the large size. BIG FOTO 

The two large barrels that provide Nebula 40 Steel with a 90-hour power reserve, as well as the balance and small seconds, are positioned along four lines of symmetry. This equilibrium is one of the signatures of the collection.

TRANSCENDENCE

Nebula 40 Steel also comes to life thanks to a host of details stemming from Arnold & Son’s technical requirements, which produce an understated aesthetic effect. 

Click, to see the large size. BIG FOTO   

These include the openworked bridges with chamfered edges, and the crown mechanism, which has been inverted and transposed to the case-back side to create symmetry with the first wheel at 9 o’clock. 

Click, to see the large size. BIG FOTO 

The same is true of the wide click spring, which controls the unwinding of the first barrel; the appliqué hour-markers, which have the same faceted design as the hands; and the proportions of the 40 mm-diameter case, which is balanced by a thickness of 9.10 mm to ensure complete elegance on the wrist.

FASCINATION

Last but not least, Nebula 40 Steel, Blue Edition is a confluence of colours. As its name suggests, the dominant shade is the blue of the movement. 

Click, to see the large size. BIG FOTO 

All the lower levels of the calibre feature a blue PVD treatment, and this hue influences the finishes: horizontal satin on the dial side of the main plate, and Arnold & Son’s signature ‘Rayons de la Gloire’ motif on the reverse.

Click, to see the large size. BIG FOTO 

In contrast, the bridges, ratchets, cogs and even the balance have a palladium finish to echo the colour of the steel case. A blue strap in alligator leather or rubber completes the timepiece.  

Click, to see the large size. BIG FOTO 

Arnold & Son is also presenting a version with a three-link steel bracelet, whose understated design allows the balanced arrangement of the case and movement to truly shine.

---------------------------------------------
TECHNICAL SPECIFICATIONS

Collection:  CHRONOMETRY

Model: CHRONOMETRY Nebula 40 Steel Blue Edition

Click, to see the large size. BIG FOTO 

Reference: 1NEGS.U01A.S135D

Click, to see the large size. BIG FOTO 

Reference: 1NEGS.U01A.C1235S

Click, to see the large size. BIG FOTO 

Reference: 1NEGS.U01A.K0243S

Case
    Material: Stainless steel
    Diameter: 40 mm
    Thickness: 9.10 mm
    Crystal domed sapphire, double-sided anti-reflective coating
    Case back sapphire crystal, anti-reflective coating
    Water-resistance: 3 bar (30 metres/100 feet)
Dial and hands
    Skeletonised dial
    Flange with blue PVD treatment, rhodium-plated appliqués
Movement
    Calibre A&S5201

    Manual winding movement
    Diameter: 31.10 mm
    Thickness: 4.18 mm
    Frequency: 3 Hz, 21'600 vph
    Number of jewels: 24
    Power reserve of 90
hours
Functions/Indications
    Hours, minutes, small seconds
Strap and buckle
    Stainless steel, blue alligator leather or blue rubber
    Clasp stainless steel, folding clasp on steel bracelet, pin buckle on alligator or rubber straps

🔴 Price:
    CHF 17'600 incl. taxes (steel bracelet)
    CHF 16'900 incl. taxes (alligator strap)
    CHF 16'700 incl. taxes (rubber strap)


 ---------------------------
Press releases - 2025
-----------------------------
------------------------------------------
Marketing & Sales
Boulevard des Eplatures 38
CH – 2300 La Chaux-de-Fonds
Switzerland
info@arnoldandson.com
------------------------------------------------
www.facebook.com - Arnold and Son 1764
----------------------------------------------------
www.Arnold&Son.com

Friday, May 30, 2025

Arnold & Son x Chronopassion WORLD TIME Double Tourbillon « Landscape » Edition

 

ARNOLD & SON x Chronopassion WORLD TIME Double Tourbillon « Landscape » White Gold Edition - Unique Piece - 2025

Click, to see the large size. BIG FOTO 

A CELEBRATION OF WATCHMAKING
INGENUITY

 Click, to see the large size. BIG FOTO

This is the story of a dialogue—a conversation between two demanding worlds inhabited by precision, audacity, and obsession with detail. 
 
 Click, to see the large size. BIG FOTO 

Chronopassion, a watchmaking agitator since 1988, and Arnold & Son, a custodian of British-inspired technical elegance, have created a unique, rare, and spectacular timepiece: the Double Tourbillon "Landscape," an exercise in style as mechanical as it is mineral.


The reflection of a shared vision

Two back-to-back tourbillons, suspended in space by mirror-polished gold bridges. Two symmetrical dials in white opal, like two pages turned simultaneously across two time zones. 
 
 Click, to see the large size. BIG FOTO 

A 43.5 mm white gold case, sculpted to welcome the light. 
 
 Click, to see the large size. BIG FOTO 

And everywhere, the earthly breath of a "landscape" jasper carefully selected by Chronopassion, whose strata evoke desert reliefs or imaginary panoramas.

 Click, to see the large size. BIG FOTO 

The mineral dial becomes a painting, the beige alligator strap an extension of the chromatic harmony, offering a poetic reading of time. 
 
 Click, to see the large size. BIG FOTO 

The Arnold & Son aesthetic is revealed in a new light, sublimated by Chronopassion's non-conformist eye.

A timepiece with two voices

The Double Tourbillon "Landscape" is more than a visual exercise. Its heart beats for two independent time zones, adjustable down to the minute—a rarity in the world of travel watches. 
 
 Click, to see the large size. BIG FOTO 

At noon, local time is displayed in Roman numerals. At six o'clock, the reference time is displayed in Arabic numerals. 
 
 Click, to see the large size. BIG FOTO  

Each dial is autonomous, and each crown is dedicated: at 2 o'clock for winding and setting, at 7 o'clock for the second time zone.

 Click, to see the large size. BIG FOTO 

This dual architecture pays homage to John Arnold, a pioneer of marine chronometry, who facilitated the calculation of longitude with his precision watches. 
 
 Click, to see the large size. BIG FOTO  

In this spirit, this timepiece perpetuates the idea of time being mastered, used, and shared—but never frozen.

High-flying mechanics

At the heart of this creation beats the A&S8513 calibre, entirely developed and hand-decorated by Arnold & Son
 
 Click, to see the large size. BIG FOTO 

It features two gear trains, two barrels for 90 hours of power reserve, and two tourbillons suspended on three-dimensional solid gold bridges, bevelled, polished and satin-finished to perfection.

 Click, to see the large size. BIG FOTO 

Every finish - from the radiant Côtes de Genève to the circular graining, from the colimaçonnage of the barrels to the polish of the chatons - is pushed to the limit. 
 
 Click, to see the large size. BIG FOTO 

The oversized pawl that secures the tension of the barrels is a tribute to expressive mechanics, where the useful becomes ornamental.  

Chronopassion inside

As a nod to Chronopassion's singular universe, this unique piece dares to contrast rigorous watchmaking with mineral inspiration. 
 
 Click, to see the large size. BIG FOTO 

Landscape jasper, rare and unpredictable, embodies a taste for the exceptional. It transforms this timepiece into a living sculpture, an intimate territory to be explored.

 Click, to see the large size. BIG FOTO 

Double Tourbillon ‘Landscape’
is not just a watch. It's an encounter between two houses driven by the same love of the unusual.

 Click, to see the large size. BIG FOTO  

---------------------------------------------
TECHNICAL SPECIFICATIONS

Collection:  WORLD TIME

Model: WORLD TIME Double Tourbillon « Landscape » White Gold Edition

 Click, to see the large size. BIG FOTO 

Reference 1FCBJ.E01A.C246J

Movement
Calibre     A&S8513 hand-wound mechanical movement, one-minute tourbillon
Jewels    42
Diameter    37.30 mm
Thickness    8.35 mm
Power reserve    90 hours
Frequency    3 Hz / 21,600 vph   
Click, to see the large size. BIG FOTO 

Finishes    
mainplate: NAC treated, circular-grained
    bridges: NAC-treated, polished and chamfered, radiating Côtes de Genève    
    screws: chamfered, mirror-polished heads  
    tourbillon bridges: 18-carat white gold, mirror-polished, satin- finished and hand-bevelled
    tourbillon cages: polished and hand-bevelled
    chatons: 18-carat white gold
Functions    local hours and minutes (Roman numerals), independent reference hours and minutes (Arabic numerals)
Dial    picture jasper
Hour dial    white opal
Case
Material    18-carat white gold
Diameter    43.5 mm
Crystal    domed sapphire, anti-reflective coating on both sides
Case back    sapphire crystal, anti-reflective coating on both sides
Water-resistance    3bar (30 metres/100 feet)
Strap
Material    desert beige alligator leather with storm blue alligator leather lining
Buckle    folding clasp, 18-carat white gold

 🔰Edition to Unique Piece pieces✅Only ❱❱❱ 1 timepiece
🔴Swiss retail price 259.000 / CHF 227,100 excl. tax (subject to change)💰

---------------------------
Press releases - 2025
-----------------------------
------------------------------------------
Marketing & Sales
Boulevard des Eplatures 38
CH – 2300 La Chaux-de-Fonds
Switzerland
info@arnoldandson.com
------------------------------------------------
www.facebook.com - Arnold and Son 1764
----------------------------------------------------
www.Arnold&Son.com

Thursday, March 27, 2025

ARNOLD & SON – Constant Force Tourbillon 11 Yellow Gold Edition

ARNOLD & SONCHRONOMETRY Constant Force Tourbillon 11 Yellow Gold Edition - 2025

A CELEBRATION OF WATCHMAKING
INGENUITY

The 41.5 mm diameter Constant Force Tourbillon 11 watch in 18-carat yellow gold, released by Arnold & Son as a limited edition of 11, is driven by a hand-wound mechanical movement. Equipped with two barrels to give a 100-hour power reserve, this timepiece was entirely developed and built at the manufacture in La Chaux-de-Fonds. It is fitted with a constant force mechanism visible on the enamel dial and is regulated by a tourbillon that can be seen on the back. 

Click, to see the large size. BIG FOTO 

The architecture of this calibre is inspired by that of the timekeeping instrument driven by the first tourbillon created by Abraham-Louis Breguet in 1808, based on a chronometer movement designed by John Arnold. This first tourbillon regulator, now in the British Museum, was given to John Roger Arnold by the Paris-based watchmaker in honour of his scientific collaboration and friendship with his father. The Constant Force Tourbillon 11 timepiece, designed to mark the end of the 260th anniversary celebrations of John Arnold’s legacy, pays tribute to the watchmaker’s ingenuity and his close association with Abraham-Louis Breguet.

Click, to see the large size. BIG FOTO

John Arnold and A.-L. Breguet, silver cased chronometer with tourbillon and spring-detent escapement, London, England, 1774 and Paris, France, 1808
© The Trustees of the British Museum

The greatest watchmakers of the Age of Enlightenment often knew each other. Some of them exchanged views and appreciated each other despite language barriers and political obstacles. And this was the case with John Arnold and Abraham-Louis Breguet. These two watchmakers, undoubtedly the most productive of the second half of the 18th century, forged a friendship that nothing could shake, not even the throes of war between the two countries or the French Revolution. Aware of their respective talents, during Abraham-Louis Breguet’s frequent trips to London between 1789 and 1791, they shared their views and knowledge of the principles of timekeeping, furthering the science of timekeeping, which in their eyes definitely knew no frontiers.

When context is everything

While John Arnold was captivated by the understated design of Abraham-Louis Breguet’s watches and his understanding of complex kinematics, Abraham-Louis Breguet was fascinated by his English friend’s ability to invent simple mechanisms that could be mass-produced and approached a chronometric precision that no other watchmaker of the time could hope to achieve. During their exchanges, which included sending their respective sons to train with the other, these two geniuses were able to work out the best way of eliminating the running errors of watch balances.

Click, to see the large size. BIG FOTO 

The English watchmaker concentrated on optimising his detent escapement and developing balances, such as special springs, so as to offer instruments capable of satisfying his proto-industrial approach to chronometer construction – especially as the Admiralty asked him to produce them in ever greater quantities and at ever lower prices.

Click, to see the large size. BIG FOTO 

Meanwhile, Abraham-Louis Breguet, inspired by his conversations with his English friend on the principles of high chronometry, continued to work on developing the tourbillon during his exile in Switzerland from 1792. On his return to Paris in 1795, he wrote about the development of a rotating carriage in a letter. Then, two years after John Arnold’s death in 1799, he patented this mechanism under the name ‘tourbillon’ in Paris on 26 June 1801, i.e. 7 Messidor Year IX according to the French Republican calendar still in effect at the time.

Click, to see the large size. BIG FOTO

To honour the memory of his friend and remember the research they had carried out together, he based his first tourbillon regulator on the movement of John Arnold’s marine chronometer no. 11. He screwed an engraved silver plate onto the main bridge with the following dedication: “The first tourbillon regulator by Breguet incorporated in one of the first works of Arnold. Breguet's homage to the revered memory of Arnold. Presented to his son in the year 1808.” This timekeeping instrument, now in the British Museum, was given to John Roger Arnold, who succeeded his father as head of the workshop and London boutique.

A chronometer designed to tell a story

As a tribute to their work and in memory of the friendship between these two watchmaking geniuses during the Age of Enlightenment, Arnold & Son has chosen to give this Constant Force Tourbillon 11 watch a 41.5 mm diameter 18-carat yellow gold case with a classic design. The yellow hue of this precious metal was chosen because it was often used by John Arnold for prestigious pocket watches at the time. It is in perfect harmony with the openworked bridge of the constant force mechanism, which is also made of 18-carat yellow gold. 

Click, to see the large size. BIG FOTO

The timepiece’s curved case middle helps to reduce its profile. The front features a thin bezel set with a slightly domed sapphire crystal with an anti-reflective coating on both sides. On the reverse, it has an open case back in yellow gold with an identical sapphire crystal, revealing the manual winding manufacture calibre with the reference A&S5219. Water-resistant up to a pressure of 3 bar (30 metres or 100 feet), the watch is worn on an alligator leather strap fastened around the wrist with a classic pin buckle in 18-carat yellow gold bearing the Arnold & Son monogram.

A precious and captivating dial

For the Constant Force Tourbillon 11 timepiece, Arnold & Son chose a white Grand Feu enamel dial to recall the dials of the ship’s chronometers that John Arnold offered to English naval officers in his London boutique. This disc was individually produced by a specialist artisan on an 18-carat yellow gold base. White enamel is obtained by melting powdered materials in a kiln heated to just over 800°C. After firing the enamel several times to achieve the required thickness, the surface is lapped to make it smooth and even. 

Click, to see the large size. BIG FOTO

Then, as long as the material has not cracked and there are no imperfections that would spoil the white colour, a translucent enamel is applied and the disc is fired one last time. This gives it depth and transparency, bringing out the full magic of the enamel, whose hue is permanent and is called ‘Grand Feu’ (great fire) because it is vitrified by melting. Openings are then made in this delicate and precious disc to accommodate the constant force mechanism and white opal subdial – a true signature of the House. Here, for the first time at Arnold & Son, this fine stone has been recessed to give it a stronger visual presence and an angle that enhances the readability of the black transfer Roman numerals.

A calibre worthy of the master of chronometers

The A&S5219 movement was specially developed by the Manufacture’s engineers and watchmakers to the specifications of the Constant Force Tourbillon 11 watch. To remain as faithful to the original movement as possible, this calibre is hand-wound. 

Click, to see the large size. BIG FOTO

But while inspired by the past, it remains thoroughly contemporary. It is equipped with two identical barrels mounted in series, giving a 100-hour power reserve. These barrels alternate in driving the mechanism, the second being activated when the torque of the first falls below optimum output.

A constant force mechanism

To guarantee the isochronism of the regulating group over 100 hours of operation, the movement’s designers incorporated a patented constant force mechanism between the going train and the tourbillon. Visible on the dial side, its purpose is to smooth out the energy delivered by the barrels so as to prevent excessive or insufficient torque from affecting the oscillations of the balance in the tourbillon carriage. 

Click, to see the large size. BIG FOTO

This constant force mechanism is held in place by an 18-carat yellow gold bridge and rotates over the course of one minute. In the Constant Force Tourbillon 11, it replaces the fusee-and-chain configuration used by John Arnold in his chronometers. As well as supplying a constant force, the system chosen for this timepiece also allows for a ‘dead-beat seconds’ indication, in which the direct-drive hand does not advance seamlessly, but instead makes successive jumps of exactly one second – much like the direct-drive seconds of marine chronometers, which also made very similar jumps (detent chronometers generally beat every half-second). 

Click, to see the large size. BIG FOTO

In the configuration chosen for the Constant Force Tourbillon 11 watch, the seconds are not indicated by a conventional hand, but instead by the tip of a flame-blued anchor used as a structural bridge for the constant force mechanism.

A system intended to smooth out positional errors

Designed to celebrate the friendship between John Arnold and Abraham-Louis Breguet, the Constant Force Tourbillon 11 watch has a transparent anti-reflective sapphire crystal case back that showcases the architecture of the A&S5219 calibre, inspired by the back of the timekeeper kept in the British Museum. 

Click, to see the large size. BIG FOTO

Here, the tourbillon carriage, which rotates once every minute, keeps the general design of the carriage used by John Arnold’s brilliant friend in the timepiece intended to commemorate their unbreakable friendship and embody the true scope of their joint research. 

Click, to see the large size. BIG FOTO

The extremely refined tourbillon features a very thin, polished and rounded-off linear carriage bridge that reveals a variable inertia balance with inertia blocks inspired by the most sophisticated oscillators used in John Arnold’s chronometers. 

Click, to see the large size. BIG FOTO

The House also chose to incorporate a T-shaped retaining spring inspired by the one used in the ‘pare-chute’ shock protection system developed by Abraham-Louis Breguet and which can be found on the tourbillon bridge of the original instrument. However, a Swiss lever escapement, which is more practical and less sensitive to shocks, was chosen over the detent escapement of the original timepiece.

Click, to see the large size. BIG FOTO

The finishes of the mainplate, bridge and tourbillon cock are virtually identical on both timepieces, while the grained and chamfered barrel bridge of the Constant Force Tourbillon 11 watch features hand-engraved inscriptions and the famous plate, which has a new text inspired by the original: “To the revered memory of John Arnold and Abraham-Louis Breguet. Friends in their time, legendary watchmakers always.” . These words underscore the historical and horological context of this Arnold & Son edition of 11 timepieces, where friendship and the art of timekeeping were the strongest driving forces. 

---------------------------------------------
TECHNICAL SPECIFICATIONS

Collection:  CHRONOMETRY

Model: CHRONOMETRY Constant Force Tourbillon 11 Yellow Gold Edition

Reference 1FCBJ.E01A.C246J

Click, to see the large size. BIG FOTO

Movement
Calibre     A&S5219 hand-wound mechanical movement, constant force, one-minute tourbillon
Jewels    35
Diameter    33 mm
Thickness    10.48 mm
Power reserve    100 hours
Frequency    3 Hz / 21,600 vph
Finishes    
mainplate: 3N golden finish, grained, polished angles
    barrel bridge: 3N golden finish, grained, polished angles, stretched edges, hand-engraved
    tourbillon bridge: golden finish, grained, polished angles, stretched edges, satin-finished Durnico steel retaining spring     
     screws: blued, chamfered, mirror-polished heads    
    tourbillon: mirror-polished carriage plate, satin-finished pallet bridge, mirror-polished stud-holder, rhodium-finished balance, polished and rounded-off carriage bridge
     constant force bridge: 18-carat yellow gold (3N), polished bevel, satin-finished flat surface, polished angles
    constant force carriage lower bridge: flame-blued, mirror-polished, polished angles
Engraved plate    To the revered memory of John Arnold and Abraham-Louis Breguet. Friends in their time, legendary watchmakers always. 
Functions    hours, minutes, true-beat seconds
Dial    white Grand Feu enamel, 18-carat yellow gold (3N) base
Hour dial    white opal, concave
Case
Material    18-carat yellow gold (3N)
Diameter    41.5 mm
Depth    13.7 mm
Crystal    domed sapphire, anti-reflective coating on both sides
Case back    sapphire crystal, anti-reflective coating on both sides
Water-resistance    3 bar (30 metres/100 feet)
Strap
Material    midnight blue alligator leather with black alligator leather lining
Buckle    pin buckle, 18-carat yellow gold (3N)

🔰Edition -✅only ❱❱❱ 11 timepieces
🔴Swiss retail price CHF 129,800 excl. tax (subject to change)💰

---------------------------
Press releases - 2025
-----------------------------
------------------------------------------
Marketing & Sales
Boulevard des Eplatures 38
CH – 2300 La Chaux-de-Fonds
Switzerland
info@arnoldandson.com
------------------------------------------------
www.facebook.com - Arnold and Son 1764
----------------------------------------------------
www.Arnold&Son.com