Armin Strom Gravity Equal Force Ultimate Sapphire Salmon ST24-GEF.SAL

Armin Strom Gravity Equal Force Ultimate Sapphire Salmon: the excellence of constant force in salmon pink

A new burst of color for a benchmark in independent watchmaking

With the Gravity Equal Force Ultimate Sapphire Salmon, Armin Strom opens a new chapter in the history of the GEF, one of the most innovative micro-rotor watches in contemporary watchmaking. This new interpretation features a salmon-colored PVD-treated plate, highlighted by a 41 mm stainless steel case and a gray nubuck leather strap with perfectly matching stitching and loops.

A bold aesthetic evolution that enhances the visual identity of the Gravity Equal Force while preserving its mechanical and architectural DNA.

Like the Ice Blue version, this Ultimate Sapphire Salmon joins the System 78 collection, a true manifesto of Armin Strom’s independent spirit and its resolutely innovative approach to Swiss haute horlogerie.

The science of constant force

A benchmark among micro-rotor haute horlogerie watches, the Gravity Equal Force is powered by the ASB19 manufacture caliber. It is the world’s first movement to incorporate a patented stop-work declutch mechanism directly in the barrel, combined with a micro-rotor.

This major innovation delivers constant force to the balance wheel throughout the 72-hour power reserve, significantly improving isochrony and chronometric precision.

The compact micro-rotor ensures efficient winding while maintaining a slim and balanced silhouette. Fully visible on both the dial and case back sides, the movement’s structure perfectly illustrates Armin Strom’s philosophy: high-level mechanics that are confident, legible, and aesthetically masterful.

The demands of watchmaking craftsmanship

True to the DNA of the manufacture, the Gravity Equal Force Ultimate Sapphire Salmon places manual work at the heart of its design. Each component of the ASB19 caliber is decorated by hand in the Armin Strom workshops in Biel, according to the highest standards of Swiss haute horlogerie:

hand-angled bridges, mirror-polished screws, cerclage, Côtes de Genève and circular graining testify to an absolute commitment to traditional craftsmanship.

The salmon-colored plate, created in collaboration with independent watchmaker Kari Voutilainen, is distinguished by its exquisitely fine hand-guilloché work, which adds depth, relief, and texture to the whole. The transparent sapphire dial reinforces this open aesthetic, immediately inviting the eye to the heart of the movement.

As with all Armin Strom creations, each watch is assembled twice, ensuring impeccable functionality and finish.

A statement of exclusivity

Produced in a limited edition of only 25 pieces per year, the Armin Strom Gravity Equal Force Ultimate Sapphire Salmon perfectly embodies the brand’s vision: mechanical transparency, technical innovation, and artisanal excellence, combined in a bold and contemporary salmon hue.

A watch with character, intended for collectors seeking an independent, rare, and technically accomplished timepiece.