The cosmic elegance of the Nebula 41.5 Steel is a masterpiece of watchmaking precision and bold design.
Nebula 41.5 Steel : L'Éclat de l'Horlogerie Stellaire
Supernovæ
Inspired by the grandeur of the stars, the Nebula 41.5 Steel shines brightly. With a stainless steel case measuring 41.5 mm in diameter and just 8.73 mm in height, it strikes the perfect balance between elegance and robustness. The Nebula 41.5 Steel inaugurates a striking contrast between black DLC and steel, accentuating the bold structure of its skeletonized caliber.
Volumetry
The Nebula 41.5 Steel’s stainless steel case is designed to attract attention with its size of 41.5 mm and exceptional slenderness of 8.73 mm. This watch perfectly combines traditional watchmaking with a modern, refined aesthetic.
Relief
The caliber’s bridges, arranged in a star shape around the mechanism, are openworked, chamfered and satin-finished, offering a unique visual spectacle reminiscent of a stellar explosion. Set at regular intervals, these bridges, identical in shape but different in size, embody the aesthetic heritage of John Arnold’s chronometers and illustrate the exceptional savoir-faire of Arnold & Son.
Settings
The Nebula 41.5 Steel plays subtly with chiaroscuro, incorporating contrasting shades of rhodium-plated and black DLC. This black treatment is applied to the skeletonized plate, barrels and flange, reinforcing the relief of the A&S5201 caliber. The construction of the movement is clearly legible, with the bridges in the foreground, the gear train and barrels in the background, and the plate in the background.
Graphics
Viewed from the back, the A&S5201 caliber reveals a striking architecture with its large DLC-treated crossed arches, revealing a second graphic structure. The highly openworked, beveled mainplate, adorned with Arnold & Son’s signature “Rays of Glory” motif, offers a breathtaking visual spectacle.
Mastery
The A&S5201 caliber, entirely developed, manufactured, decorated, assembled, adjusted and cased at the Manufacture in La Chaux-de-Fonds, relies on two large barrels and an oscillation frequency of 3 Hz, offering an impressive 90-hour power reserve. Despite its openworked design, this movement retains a remarkable 4.18 mm of finesse, a testament to Arnold & Son’s unrivalled expertise.
Discover the Nebula 41.5 Steel, a watch where haute horlogerie meets cosmic inspiration, for an unprecedented visual and mechanical experience.
Movement
Calibre A&S5201, hand-wound mechanical
Stones 24
Diameter 31.10 mm
Height 4.18 mm
Power reserve 90 hours
Frequency 3 Hz / 21,600 vib/h
Platinum finishes: DLC-treated, “Rayons de la Gloire” guilloché
barrel covers: DLC-treated and sunrayed
bridges: rhodium-plated, polished corners and satin-finished surfaces
balance wheel: rhodium-plated
Material stainless steel
Diameter 41.50 mm or 38 mm
Thickness 8.73 mm
Domed sapphire crystal, anti-reflective on both sides
Back sapphire crystal, anti-reflective
Water-resistance 30 metres/100 feet
hours, minutes, small seconds
Black ballistic rubber material
Stainless steel buckle
Nebula 41.5 Steel (rubber): 1NEAS.B05A.K003S
