ArtyA’s Purity Curvy HMS Sapphire, Sport Edition sets a clear agenda – let the movement speak and let sapphire keep quiet. The brand recuts its signature Curvy case in Saphir Absolu®, using color as an accent rather than a costume. The result is a crystalline frame that turns structure into style.
The Curvy architecture is the point. Fluid, symmetrical lines hug the calibre, and the transparency invites the eye to travel through it rather than around it. ArtyA has worked sapphire for over fifteen years; here it is pushed through a demanding regime – roughly 120 hours of machining and more than 140 hours of polishing – to achieve an even, clear transparency. Triple anti-reflective treatment keeps reflections at bay, which is only fair given the price of admission for scenery like this.
Inside, the in-house Purity Curvy HMS calibre carries the Stairway To Heaven escapement, staged at 4 Hz as if hovering over the movement. Finishing is purposeful: microbead blasting with cast-iron media on the minute and balance bridges, edges hand-polished. Regulation is classical and serious, with peripheral weights setting the balance inertia for stable timing over the long term.
Power comes from two parallel barrels fitted with longer, thinner springs for a smoother, more linear delivery. The barrels adopt a gentle curvature that echoes the bridges – a small but telling decision – and the movement keeps running for 72 hours. Torque is stated at 730 g·mm, a rare nod to the physics behind the poise.
Sapphire may be neutral, but ArtyA lets the owner nudge the mood. The colored caseback gasket – visible from the flank – and a matching strap add contrast without breaking the architecture. Swap colors at an ArtyA retailer and the watch shifts character while the mechanics remain the same quiet protagonist.
The case measures 38.5×43 mm and 12 mm thick, with 30 m water resistance, engraved crown and caseback, and hours-minutes on a subdial at 6 with small seconds. Limited to 99 pieces and priced at CHF 49900 before taxes, it is a study in intentional transparency – less a display case, more a lens onto construction.
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