In 2010, Armin Strom introduced their very first watch, the One Week, featuring a movement developed and crafted in-house. Equipped with a seven-day power reserve and the design focused on symmetrical harmony of the state-of-the-art mechanics, this statement piece laid the foundation for many of Armin Strom’s future developments.

Recently, the independent Swiss manufacture revisited their initial caliber. With a reworked design, the One Week First Edition establishes itself as a permanent model within the brand’s collections. A hallmark of Armin Strom’s technical and aesthetic approach is the presentation of kinetic-mechanical elements on the dial side. The One Week First Edition takes this even further. The completely reworked and redesigned manual-winding movement with a seven-day power reserve resembles a tiny sculpture. Form, function, aesthetics, and ergonomics are harmoniously brought to the forefront and presented on a the plate treated with a light blue PVD coating.
The caliber ARM21 features two barrel springs connected in series to provide the gear train with consistent energy. Held by two finger-shaped bridges, the barrel springs are symmetrically positioned on the right half of the fully open dial. The manual winding unveils its hypnotic choreography when the two wheels, responsible for winding the barrel springs in opposite directions, are entirely on display.

One of the most striking features of the new One Week is its ...