Robert Mühle founded his precision-instrument workshop in Glashütte, Saxony, in 1869, initially producing measuring gauges and tools for the emerging Glashütte watchmaking industry. The firm's products were used by A. Lange & Söhne and other Glashütte manufactures for their own movement-production quality control, making Mühle an essential supplier rather than an end-product brand. The firm continued as an instrument maker through the early 20th century.
The Mühle family's connection to Glashütte survived the Soviet expropriation after WWII and the reunification-era industry collapse. In 1994, Hans-Jürgen Mühle (the fourth-generation descendant of Robert Mühle) re-established the firm as a watchmaker in Glashütte, moving from instrument supply to finished wristwatches. The pivot was commercial: the Glashütte watchmaking revival of the early 1990s made end-product branding more viable than component supply.
Mühle Glashütte's technical signature is the woodpecker-neck regulator, a proprietary fine-adjustment mechanism that replaces the conventional swan-neck regulator with a double-spring geometry resembling a woodpecker's neck. The mechanism allows finer rate adjustment and is applied to most modified ETA and Sellita movements used in the Mühle collection. Movements are not fully in-house but are substantially modified at Glashütte with proprietary finishing (three-quarter plate, decorated balance cock, blued-steel screws) and the woodpecker-neck regulator.
The commercial signature is the DGzRS partnership. Since 2003 Mühle Glashütte has been the official watch supplier to the Deutsche Gesellschaft zur Rettung Schiffbrüchiger (German Sea Rescue Service), the volunteer organisation operating rescue cruisers along the German Baltic and North Sea coasts. The S.A.R. series (Sea Rescue) references are worn by active rescue crews and available commercially; a portion of S.A.R. revenues funds the DGzRS directly. The broader collection includes the Marinus (dive watch, 1,000m water resistance), ProMare (dress-sport dive), Teutonia (classical dress), and Seabattalion (professional dive). Retail runs from approximately €1,300 (Teutonia steel) to €3,500 (Marinus GMT) and €5,000+ for limited S.A.R. commemorative editions.
