One Week Manufacture Edition

The redesigned One Week First Edition made its debut in 2023 as a new version of Armin Strom's first manufacture movement from 2010.

In 2024, while Armin Strom celebrates its 15th anniversary, it unveils the Manufacture Edition featuring a highly architectural openworked movement. Housed in a sleek and sporty 41mm steel case with an integrated bracelet, this timepiece is now presented in a range of grey and anthracite hues. Entirely developed and manufactured in-house and designed with symmetrical harmony in mind, it stands out thanks to its unique movement architecture, featuring two barrels that together provide a seven-day power reserve. This timepiece is limited to 100 pieces.

Mechanical artistry in motion

The One Week is all about highlighting the openworked design and showcasing many of the movement’s kinetic elements on the dial side – something that has become an instantly recognisable feature of Armin Strom timepieces. While similar in name and function to its predecessor, the new generation of the One Week has been completely reengineered and redesigned, resulting in a manual-winding movement that boasts stunning architectural depth. Form, function, aesthetics and ergonomics are all harmoniously brought into the foreground, resulting in a piece of otherwise traditional horology executed in a dynamic and radical way.

The science of movement

True to its name and just like its predecessor, the One Week delivers an impressive seven-day power reserve. The new manual-winding ARM21 calibre features two mainspring barrels, which work in series to provide consistent levels of energy to the gear train. Held by two finger-style bridges, the barrels are symmetrically arranged on the right portion of the completely open dial. The manual winding ritual performs a hypnotic choreography as the motion of two ratchet wheels winding both barrels in opposite directions is clearly visible from the dial side.

One of the most distinctive features of the new One Week is its power reserve indicator. In keeping with the architectural depth of the movement, the power reserve is indicated by a cone system that takes its inspiration from pocket watches, with a mirror-polished cone driven by a conical gear on the opposite side of the dial.

For a watch with a sporty edge, performance also means withstanding rapid movements and shocks. The major chronometric evolution of the new One Week is thus the oscillating frequency of the regulating organ. The rate has been increased from 2.5 Hz to 3.5 Hz (25,200 vph) versus the first One Week generation from 2010, which offers a more stable chronometric performance. This required Armin Strom’s engineers to recalculate and reconfigure the entire gear train.

Craftsmanship in every detail

Like all Armin Strom creations, from the purest to the most complex, the One Week is a masterclass in haute horlogerie hand-finishing. Straight- and circular-grained surfaces, chamfered and polished bevels, Geneva-striped plates, and polished screws and sinks haveclearly been applied by expert hands. The One Week Manufacture Edition stands out with its anthracite PVD-coated mainplate and bridges, offering a monochromatic look that blends perfectly with its steel exterior.

An emphasis on ergonomics

The One Week’s micromechanical sculpture of a movement is housed in a suitably contemporary case. Crafted in stainless steel, it measures 41 mm in width and only 10.6 mm in height – surprisingly compact proportions for a calibre of such intense depth. Paired with an integrated steel bracelet consisting of H-shaped satin-brushed and polished links, the overall design is holistic with an emphasis on ergonomics to make for a perfect everyday-wear piece full of mechanical intrigue.