Armin Strom / Minute Repeater Resonance 12:59 First Edition

Key Highlights

• Combines a full Westminster chiming minute repeater with Armin Strom’s patented resonance clutch system.
• New in-house manual-winding Calibre ARR25 with two independent regulating systems and 506 components.
• Innovative “12:59 Anytime” function offering the longest possible chiming sequence on demand.
• 42 mm titanium case with a slimmer 11.70 mm profile and fully openworked, three-dimensional architecture.
• Limited to 25 pieces, each meticulously hand-finished with 360-degree decoration.

A New Expression of Resonance and Chiming

With the Minute Repeater Resonance 12:59 First Edition, Armin Strom sets out a new benchmark in contemporary haute horlogerie. Inspired by the earlier Masterpiece 2 yet completely re-engineered, this debut brings the brand’s patented resonance technology together with a full Westminster chiming minute repeater in a more compact, wearable format. The titanium case now measures 42 mm in diameter and just 11.70 mm in height, a notable achievement considering the elevated mechanical complexity inside.

The openworked dial architecture is defined by clarity and restraint rather than excess. The display is centred, giving immediate prominence to the essentials: the resonance system with its twin balance wheels, the quartet of hammers and gongs responsible for the chime, and the visible flying governor controlling the tempo of the strike. While three-dimensional and fully transparent, the composition favours softer lines and a more fluid layout, maintaining Armin Strom’s signature transparency but with a more measured, balanced language.

A key visual refinement is the reorientation of the resonance clutch. Now animating upward, it brings the oscillating interaction to the foreground, making the phenomenon of resonance more legible and engaging on the dial side. The twin balance wheels remain visually anchored, reinforcing symmetry and underlining the dual nature of the regulating system.

The Calibre ARR25: Dual Architecture, Single Purpose

At the heart of the watch is the newly developed, fully in-house manual-winding Calibre ARR25. This manufacture movement is built around Armin Strom’s patented resonance clutch and is designed to synchronise two entirely independent regulating systems. Each of these has its own barrel, gear train, escapement, and balance wheel, operating in harmonic resonance to stabilise timekeeping. The result is a dual architecture that demands the precise coordination of roughly twice the components of a conventional striking calibre.

With 506 components and 74 jewels, Calibre ARR25 operates at a frequency of 3.5 Hz, or 25,200 vibrations per hour, and offers a power reserve of 40 hours. The movement dimensions—34.40 mm in diameter and 6.53 mm in height—underline the challenge of integrating a resonant dual-train system and a complex chiming mechanism into such a refined case profile. Despite its intricacy, the calibre remains visually coherent, with a clear separation of functions visible through both the dial and caseback.

The resonance clutch itself is engineered to transmit energy between the two oscillators, encouraging them to lock into a shared rhythm. In the Minute Repeater Resonance 12:59, this system is not only a technical signature but also an aesthetic focal point, forming part of the watch’s narrative as “Science of Movement” made visible.

The 12:59 Function and Westminster Chime

The striking system of the Minute Repeater Resonance 12:59 First Edition is a substantial evolution over earlier Armin Strom complications. It has been expanded to four hammers and four gongs, enabling a full Westminster chiming sequence within a remarkably thin construction. A flying governor, prominently visible beneath the hammers on the dial side, regulates the cadence of the strike, ensuring acoustic consistency while adding dynamic motion to the front of the watch.

A defining innovation is the “12:59 Anytime” function. Through a dedicated selector, the wearer may choose between two distinct striking modes. In “On Time” mode, the watch chimes the hours, quarters, and minutes indicated by the hands, in traditional minute-repeater fashion. Alternatively, the “12:59 Anytime” setting triggers the longest possible sequence the mechanism can deliver: twelve hours, three quarters, and fourteen minutes. This additional functionality transforms the chiming works into an experience that can be summoned independently of the displayed time.

Control of this transition is entrusted to a column wheel system, enhancing both precision and reliability. The active mode is discreetly indicated via a small aperture showing white or red, allowing the wearer to confirm the selected function at a glance. Activation is via a slider positioned at 9 o’clock, which simultaneously winds and releases the striking mechanism, integrating ergonomics and mechanical efficiency in one gesture.

Finishing and Case Execution

Armin Strom’s emphasis on artisanal execution is evident throughout the Minute Repeater Resonance 12:59 First Edition. The brand applies full 360-degree decoration, with each component meticulously finished by hand by an in-house team. On the dial side, the contrast between polished and matte surfaces heightens depth and legibility. The hammers, gongs and the resonance clutch spring are mirror-polished, while the mainplate and bridges are frosted, with hand-bevelled edges and polished sinks to catch the light.

The flying governor is treated as a visual centrepiece, combining hand-bevelled contours with circular graining and a matte engraved surface. Turning the watch over, the eye is met with traditional haute horlogerie techniques such as Geneva stripes, straight and circular graining, complemented by more contemporary textures. Together, they create a landscape of surfaces that underline both the complexity and the coherence of Calibre ARR25.

The titanium case is complemented by a titanium anthracite dial ring and hand-decorated stainless-steel hands. Water resistance is rated at 5 ATM, and the case measures 48.00 mm from lug to lug, framing the movement without overwhelming the wrist. A matte grey alligator strap with dark grey stitching and a titanium pin buckle completes the ensemble, echoing the tone-on-tone, “tone by tone” approach that runs through the design.

Exclusivity and Positioning

The Minute Repeater Resonance 12:59 First Edition is limited to 25 pieces, underscoring its status as a focused expression of Armin Strom’s watchmaking philosophy rather than a series watch. Each example is equipped with the same core specifications: manual-winding Calibre ARR25 with resonance and minute repeater 12:59 functions, 40-hour power reserve, titanium case with sapphire crystal and caseback treated with anti-reflective coating, and the brand’s distinctive openworked presentation.

The piece is priced at CHF 390’000.-, aligning it firmly with the upper echelon of contemporary haute horlogerie. Its combination of resonance technology, a full Westminster chiming mechanism, and a carefully curated aesthetic places it among the more technically ambitious propositions in independent watchmaking.

Why It Matters

For collectors in the GCC, the Minute Repeater Resonance 12:59 First Edition offers a rare combination of mechanical innovation and architectural transparency, uniting a Westminster minute repeater with a patented resonance system in a wearable titanium case. Its 25-piece limitation, hand-finished calibre, and distinctive “12:59 Anytime” function position it as a considered choice for connoisseurs seeking depth of engineering and clear horological identity in their most important pieces.

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