PURITY CURVY HMS SAPPHIRE
SPORT EDITION
The absolute transparency of sapphire reveals
the Stairway To Heaven manufacture architecture
The Curvy case, the in-house HMS calibre and the coloured gaskets
come together to create a distinctive aesthetic signature.
THE CURVY ARCHITECTURE, REVEALED THROUGH SAPHIR ABSOLU®
ArtyA reinterprets its iconic Curvy case in Saphir Absolu®, introducing new colour reflections. Designed in-house, this complex construction stands out for its fluid, symmetrical lines, whose curves embrace the calibre while maintaining a harmonious aesthetic. Sapphire transparency transforms the way the watch is perceived: the eye travels through the case to discover the mechanical architecture in all its complexity, revealing the movement from entirely new perspectives. A symbol of family-owned and independent watchmaking, the Purity Curvy HMS Sapphire, Sport Edition brings together three of ArtyA’s defining signatures: instantly recognisable design, an exposed manufacture architecture and an exceptional material.
The quality of the sapphire used by ArtyA ranks among the purest materials employed in contemporary haute horlogerie. Saphir Absolu® is carefully selected for its exceptional, clear transparency.
A pioneer in the machining of sapphire for over fifteen years, ArtyA Genève has developed a case entirely fashioned from this material of extreme hardness (9 on the Mohs scale), whose exceptionally complex shaping requires rare diamond machining processes of the highest precision, a mastery achievable with over 120 hours of machining and more than 140 hours of polishing.
THE PURITY CURVY STAIRWAY TO HEAVEN MANUFACTURE CALIBRE
The Curvy Purity HMS manufacture calibre now powers the Curvy Sapphire Sport cases. It combines an in-house movement specifically designed for the iconic Curvy tonneau-shaped case with the Stairway To Heaven escapement, whose architecture reveals the full complexity of the mechanism through the transparency of sapphire.
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Microbead blasting using cast-iron beads and hand-polished edges on the minute and balance bridges.
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Operating at 4 Hz, the escapement takes centre stage, elevated as if on a podium and seemingly suspended in mid-air.
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A traditional adjustment technique reserved for haute horlogerie ensures optimal precision. This process involves finely adjusting the balance wheel’s inertia using peripheral weights to ensure that the balance spring oscillates regularly and consistently. This optimises calibre performance and maintains long-term chronometric stability.
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Two parallel-running barrels are fitted with longer, thinner mainsprings to ensure smoother unwinding and deliver more stable, linear energy. The spring blade is polished to optimise its coefficient of friction. The new, elegantly curved barrel drum design follows the contours of the prominent bridges, perfectly echoing the circles formed by the movement’s architecture. Proudly bearing the name of the Swiss manufacture alongside that of the calibre, this subtle detail completes the movement’s refined aesthetic.
Red
Orange
Yellow
Cyan
Blue
Purple
Black
Transparent
White
COLOUR AS A SIGNATURE
The transparency of Saphir Absolu® is paired with a touch of colour: the caseback gaskets, visible from the side, become a graphic element in their own right. Their hue accentuates the contours of the case and creates a contrast with the exposed mechanics, without altering the watch’s architecture.
Colour is conceived as a form of personal expression rather than a mere decorative detail. The caseback gasket and matching strap allow the watch’s visual identity to evolve. A wide range of colours is available for the Purity Curvy HMS Sapphire, Sport Edition. Both can be changed at any time at an ArtyA retailer, giving the watch an entirely new look with every new colour.
TECHNICAL
SPECIFICATIONS
Edition
Limited to 99 pieces
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Case
Saphir Absolu®
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Dimensions
38.5 × 43 mm
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Thickness
12 mm
​
Water Resistance
30 metres
Caseback
Engraved and screwed caseback
Sapphire
Triple anti-reflective treatment
Hands and Displays
Hours and minutes on a subdial at 6 o’clock
Small seconds
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Crown
Engraved with the ArtyA signature
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Strap
Nubuck
Buckle
ArtyA pin buckle
Movement
Purity Curvy HMS (Hours Minutes Seconds)
Stairway To Heaven escapement
Winding
Manual
Functions
Hours, minutes and small seconds
Power Reserve
72 hours
Frequency
4 Hz (28,800 vibrations/hour)
Torque
730 g·mm
Jewels
22
Components
134
Calibre Dimensions
32.4 × 27.8 mm
Calibre Thickness
5.43 mm​
Swiss Made
Entirely designed and manufactured between Geneva and the Swiss Jura.
