Not all images were able to load for printing. Please close the print window and try again. ArtyA Presents the Purity Curvy HMS Sapphire Sport Edition
Tonneau-shaped sapphire cases with colourful, customisable gaskets house the brand’s openworked Stairway to Heaven escapement.
Yvan Arpa continues the brand’s strategy of pairing ultra-transparent sapphire crystal cases and openworked movements, with no limits imposed on colour. The latest offering from ArtyA follows the path of the Purity Tourbillon Sport Editions with configurable features released earlier this year. While the new Purity Curvy HMS Sapphire Sport Editions are less complex mechanically, the tonneau-shaped sapphire cases showcase the brand’s signature Stairway to Heaven escapement with the balance wheel suspended mid-air.
To understand the provenance of these novelties, it’s helpful to decipher the name of the watch: Purity refers to the brand’s minimalist openworked collection; Curvy is the name given to the tonneau-shaped case; HMS stands for hours, minutes and seconds; and Sport Edition references the ergonomic and highly scratch-resistant case construction as well as the customisable aspects of the watch.
Saphir Absolu
The streamlined tonneau-shaped Curvy case – 38.5mm wide x 43mm long with a crown at noon – is made from Saphir Absolu, a trademarked name for ultra-pure, optical-grade synthetic sapphire crystal. Extremely hard (9 on the Mohs hardness scale), the sapphire case is virtually scratch-proof and requires diamond-machining processes to achieve the required shape. Although the sapphire cases appear to be tinted in a host of different colours, they are transparent; the colour comes from the gasket on the caseback. The case is treated with a triple anti-reflective coating to prevent glare.
Stairway to Heaven
Developed with movement specialist Télôs, ArtyA’s signature Stairway to Heaven calibre features an openworked balance suspended mid-air with a series of stepped bridges (hence the name). Introduced in 2024, the movement debuted in round steel and ceramic cases, followed by a round Wavy sapphire crystal case, and in 2025, titanium and NanoSapphire tonneau-shaped cases.
The three-hand movement, shaped like a figure eight, is suspended vertically with two parallel barrels at noon for the 72-hour power reserve. The hour and minute ring is placed above the barrels and intersected by the smaller running seconds, while the lower part of the figure eight contains the Stariway to Heaven bridges over the 4Hz balance wheel. The minute and balance bridges feature microbead-blasted surfaces with hand-polished edges.
Customisation
Available in a wide range of colours – orange, black, blue, purple, white, yellow and turquoise – the caseback gasket and the matching leather strap can be changed by an ArtyA retailer.
Availability & Price
The Purity Curvy HMS Sapphire Sport Edition is limited to 99 pieces and retails for CHF 49,900, EUR 55,000 or USD 61,000 (excl. tax). More information at artya.com.
