Armin Strom is a Biel-based independent manufacture specializing in skeletonized movements, resonance technology, and constant-force watchmaking.
Overview
Founded: 2006
Based in: Biel, Switzerland
Typical Price Range: £15000–£50000 GBP
Known For: Gravity Equal Force, Mirrored Force Resonance
Website: arminstrom.com
Brand Story
The brand was originally founded by master skeletonizer Armin Strom in 1967. In 2006, it was acquired by Serge Michel and watchmaker Claude Greisler, who transitioned the brand into a fully integrated manufacture in Biel. Armin Strom is famous for its mechanical innovation, developing movements that display the watch’s technical functions on the dial side, and pioneering resonance technology.
Design Language
Armin Strom watches feature open-worked or skeletonized dials, off-center hour-and-minute sub-dials, and highly architectural bridge configurations. The cases are modern and industrial, showcasing the gear train on the front.
Movements & Manufacturing
The manufacture designs and builds all movements in-house. Innovations include the Equal Force barrel (delivering constant power to the escapement) and the Clutch Spring system used in their resonance chronometers.
Notable Models
The Gravity Equal Force is the world’s first automatic watch with a constant-force transmission system, and the Mirrored Force Resonance features two synchronized balance wheels.
Why Enthusiasts Care
Armin Strom offers collectors access to genuine horological innovation and manufacture-level skeletonization. Their focus on visual mechanics and constant-force systems appeals to technically minded watch lovers.
Official Website
Featured Models
Gravity Equal Force
A skeletonized technical timepiece featuring a constant-force transmission system and dial-side mechanical architecture.
