Experience Horological Harmony: The New Standard in Chiming Resonance
Redefining Wearability and Acoustic Performance
Armin Strom has a well-established reputation for its consistent advancements in the physics of resonance within watchmaking. Following the introduction of its Mirrored Force Resonance in 2016, the brand has continually developed its distinctive mechanical approach, characterized by dual oscillators interconnected by a clutch spring. The new Minute Repeater Resonance 12:59 First Edition revisits and completely re-engineers its ambitious chiming resonance watch, focusing on both mechanical sophistication and enhanced ergonomics. This latest iteration significantly improves upon its predecessor, the Masterpiece Minute Repeater Resonance (launched in 2019 and now discontinued), by addressing almost every aspect of its design.
Enhanced Case Design: Comfort Meets Precision
The updated case of the Minute Repeater Resonance 12:59 First Edition is notably more practical for daily wear. It measures 42mm in diameter and a mere 11.7mm in thickness, a considerable reduction from its previous dimensions of 47.7mm by 16.10mm. Constructed from titanium, the case not only offers superior comfort but also optimizes acoustic performance, as this material facilitates efficient sound wave transmission. A slider located at 9 o'clock serves the dual purpose of winding and activating the striking mechanism. The watch also provides a water resistance of 30 meters.
An Openworked Dial: A Symphony of Mechanics
The dial-side aesthetics have undergone a thoughtful transformation. While maintaining its signature openworked design, the new architecture features a centrally positioned time display, departing from the off-centered subdial found in the earlier Masterpiece Minute Repeater Resonance. Hours and minutes are clearly indicated on a suspended chapter ring. The lower section of the dial is predominantly dedicated to the intricate regulation system, showcasing twin balance wheels linked by a resonance-clutch spring. At the 12 o'clock position, the striking hammers and their corresponding gongs are prominently displayed, forming a harmonious arc across the upper half. An important element, the flying governor, with "Armin Strom" subtly inscribed three times, is situated beneath the hammers. When the repeater is engaged, this governor precisely controls the speed of the striking sequence, ensuring uniform spacing and consistent acoustic quality of the notes. Unlike traditional governors often concealed within the movement, this one is visibly active on the dial, spinning rapidly during operation and adding a captivating visual dynamic to the chiming spectacle.
The Powerhouse: Calibre ARR25
Powering this exceptional timepiece is the new in-house manufactured calibre ARR25. While the previous Masterpiece Minute Repeater Resonance utilized the ARR18 calibre, a collaboration between Armin Strom and Le Cercle des Horlogers, the ARR25 is a completely in-house development. This hand-wound movement comprises an impressive 506 components and incorporates Armin Strom's patented resonance clutch, which effectively connects two entirely separate and independent regulating organs. Each oscillator is equipped with its own barrel, gear train, escapement, and balance wheel. Through the clutch spring, these two balances interact and synchronize, thereby neutralizing positional errors and enhancing the stability of the rate.
Westminster Chime: A Grand Horological Achievement
Distinguishing itself from most minute repeaters that typically employ two gongs and two hammers, the ARR25 calibre features an elaborate system of four hammers and four gongs, enabling it to produce a Westminster chime. This intricate sequence, reminiscent of famous clocks like Big Ben, articulates the hours, quarter-hours, and minutes using a complex melody rather than simple strikes. Achieving such a sophisticated mechanism within a relatively slender movement, measuring just over 6.5mm in height, demands meticulous control over space, energy, and timing.
Dual Striking Modes: Versatility and Demonstration
Perhaps the most innovative aspect of this watch is its dual striking mode functionality. Wearers have the option to choose between two distinct operations. In the standard mode, the repeater chimes the current time precisely as displayed by the hands. The alternative "12:59" mode, affectionately dubbed the "Show-Off" mode, allows the watch to execute the longest possible chiming sequence: twelve hours, three quarter-hours, and fourteen minutes. This mode transforms the repeater into a magnificent demonstration of its capabilities, showcasing the full intricate complexity of the Westminster mechanism on demand.
Seamless Mode Transition and Exquisite Finishing
The transition between these two striking modes is executed with remarkable precision, facilitated by a column wheel system visible on the case back, which ensures correct engagement of the selected function. A small indicator aperture near the center of the dial on the left side displays the active mode, illuminating white or red when the slide is operated with a downward motion. The finishing of the timepiece adheres to Armin Strom's contemporary aesthetic. On the dial side, the frosted surfaces provide a striking contrast to the mirror-polished hammers and gongs. Bevelled edges and polished sinks meticulously define each component. The resonance clutch spring, a crucial functional element, also receives a precise finish. Flipping the watch reveals a different artistic approach on the reverse, where Geneva stripes, circular graining, and hand-finished details adorn the bridges and plates.
Exclusivity and Price
The watch is elegantly presented on a grey alligator strap, secured by a titanium pin buckle. This First Edition is limited to only 25 pieces, representing a culmination of Armin Strom's ongoing research into resonance and a significant refinement of its most complex creations. The result is a more compact, wearable, and aesthetically coherent timepiece. The price for this horological marvel is set at CHF 390,000.