Armin Strom

Armin Strom is considered to be one of the pioneers of skeletonized watches and the style has been further enhanced by owners Serge Michel and Claude Greisler. Since taking the keys in 2006, the pair quickly developed the brand into a full-scale vertical manufacture by first producing its own main plates, bridges, levers, springs, wheels, pinions and screws. In 2009, they presented their first in-house calibre, the ARM09 with an 8-day power reserve. The brand has since achieved a level of vertical integration measured at 97%.

Additional in-house calibres followed, including the AMW11 in 2011 and soon after the ATC11 tourbillon movement with a 10-day power reserve. In 2016, the brand’s biggest breakthrough was the Mirrored Force Resonance, where two separate oscillators (the balance spring assembly) were connected by a resonance clutch spring that brought two separate seconds hands into perfect synchronicity once the oscillators achieved resonance because of their proximity to each other. This was a first for a watch and the culmination of two and a half years of development and allowed for even greater precision for the brand’s pieces.

Serge Michel and Claude Greisler appreciate the independence of the brand and full control of design and manufacturing, which allows for customization of individual elements (including the colour for the coating on movement components) and other subtle manifestations such as the slightly off-centre location of the hour and minute hands.