Arnold & Son Nebula 41.5 Steel
1NEAS.U01A.K002S
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The Arnold & Son Nebula captures the ethereal beauty of a nebula with its stunning 41.5mm stainless steel case. This timepiece, limited in production, boasts a skeleton dial that reveals the intricate A&S5201 calibre, designed to evoke the expansive elegance of interstellar clouds. The watch’s symmetrical arrangement of seven bridges, resembling an exploding star, is paired with dual mainspring barrels for a robust 90-hour power reserve. The movement’s open-worked design showcases its precision and artistry, while the delicate chamfered edges and hand-polished surfaces enhance its cosmic allure. With its refined balance and celestial inspiration, the Nebula is a tribute to the marvels of the universe. As they say, ‘every watch tells a story,’ let this limited edition Nebula be the next chapter in yours.
Full Specification
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Brand Arnold & SonCollectionNebulaSeriesN/AModel No1NEAS.U01A.K002S
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MovementFeatures Small SecondsMovement Manual WindingCalibre A&S5201CaseCase Size 41.5 mmCase Thickness 8.75 mmCase Shape RoundCase Material SteelCase Back See-through Case BackGlass Material Sapphire CrystalDialDial Colour SkeletonHands ObelisqueStrapStrap Material RubberStrap Colour BlueClasp Type Pin BuckleBuckle/Clasp Material SteelOtherGender MenWater Resistance (M) 30Warranty Period 2 YearsCountry of Origin Switzerland
Product Video
Collection Video Discover the Nebula Collection
About the Arnold & Son Nebula Collection
A nebula is an enormous cloud of dust and gas found in interstellar space. Arnold & Son took inspiration from this celestial occurrence to create one of their most amazing timepieces, rightfully called Nebula. The maison have brilliantly captured this stellar explosion in the watch through the deliberate and meticulous arrangement of movement components, particularly the bridges, which seem to be expanding from the centre to the perimeter.
Part of the Chronometry family, the Nebula collection of watches for men and women stands out with its unique movement architecture, characterised by a symmetrical yet intricate design. Carved entirely from the ground up, the movement features seven bridges assembled to look as if they are radiating from the centre of the dial. They are accompanied by two mainspring barrels fitted at ten and two o'clock. Their powerful combination provides the mechanism with constant torque that usually diminishes as the mainspring loses its energy whilst unwinding. To further elevate the aesthetics of the openwork movement, the brand have fitted the balance mechanism at four o'clock.
Arnold & Son weaponise one of their strongest suits of skeletonisation and synthesise it beautifully in the Nebula collection. As a result, each Nebula watch comes with a skeleton dial, allowing a captivating view of the distinctive movement within. The earlier Arnold & Son watches from the Nebula collection featured the calibre 5101; however, all the timepieces in the current lineup are equipped with the advanced 5201. The collection exudes a cosmic allure, adding an otherworldly charm to its overall appeal.
Features
The Nebula collection features watches for women and men in a classic round case, in sizes 38mm and 41.5mm. They are crafted from opulent materials such as rose gold. These Arnold & Son watches are available in options of fabric and leather straps or steel bracelets. The open-worked dial is complemented by refined finishing touches, such as chamfered edges and hand-polished surfaces.

ABOUT THE MOVEMENT
Architecture is one of the strongest elements of the calibre A&S5201 that powers Arnold & Son Nebula watches. Its seven triangular bridges, with polished angles and satin-finished surfaces, are positioned interestingly on the dial side, creating the effect of an exploding star. These bridges meticulously hold the two barrels at the top while supporting the seconds' ring and the balance wheel at the bottom. As intended to be visible through both front and back, each component of the movement is finished to haute horlogerie standards. This hand-wound movement is as functionally brilliant as it is aesthetically charming. It furnishes a power reserve of 90 hours and is relatively thin at 4.04mm.

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- Brand Arnold & Son
- Reference A&S5201
- Movement Manual Winding
- Display Analog
- Power Reserve Approx. 90 hours
- Jewels 24
- Frequency 21600 bph
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