Stowa
A Pforzheim watchmaker named after its founder, Walter Storz. It was one of the five makers of the German air force’s observation watch in the Second World War, and since 1997 has built pilot’s watches on that pattern again.
Founded 1927, Hornberg, in the Kinzig valley, Germany, Owned by Tempus Arte GmbH & Co. KG, since 2021
Pforzheim and the observation watch
The name comes from the opening letters of STOrz and WAlter. In 1935 the company moved from the Black Forest to Pforzheim, and in 1938 it put up its own building on Bismarckstraße. Alongside its everyday watches it made plain designs in the Bauhaus manner from 1937, which its Antea series still follows.1, 5
In the Second World War Stowa was one of five firms that built the observation watch, the B-Uhr, for navigators of the German air force; the others were A. Lange & Söhne, Laco, Wempe and IWC Schaffhausen. Stowa’s were 55 mm wristwatches with the Swiss Unitas 2812 pocket-watch movement, made from 1940 with a conventional hour ring (Baumuster A) and later with a large outer minute ring around a small hour ring (Baumuster B). Stowa says probably no more than 42 of the Baumuster B were made.2, 3, 4, 5
Rheinfelden, a new owner and a return
The Bismarckstraße building was destroyed in the bombing of Pforzheim on February 23, 1945, and that year production moved to Rheinfelden on the Swiss border, where a new factory was finished in 1951. The Pforzheim headquarters was rebuilt alongside it, and in 1954 Stowa founded RUFA to make shock absorbers for PUW and Durowe movements.1, 5
Werner Storz, the founder’s son, joined in 1960 and ran the company until 1996, when, with no successor, he sold it to the watchmaker Jörg Schauer. The next year Stowa reissued its wartime pilot’s watch in the Baumuster A form; the Baumuster B followed in 2010 and a pilot’s chronograph in 2012. From 2009 it worked from a new building with a museum in Engelsbrand, near Pforzheim.1, 2, 5
Since July 2021 Stowa has belonged to Tempus Arte. It moved back into Pforzheim in 2023 and in 2024 introduced a movement of its own, the M1. It also took part in drafting DIN 8330, the German standard for pilot’s watches created in 2016, as Stowa describes it.1, 2, 5
Key dates
- 1927
Walter Storz founds the company in Hornberg.1, 5
- 1935
Stowa moves to Pforzheim.1, 5
- 1940
Observation watches for the air force, in the Baumuster A form.2, 3
- 1945
The Pforzheim building is destroyed on February 23; production moves to Rheinfelden.1, 5
- 1996
Jörg Schauer buys the company from Werner Storz.1, 5
- 1997
The wartime pilot’s watch is reissued.1, 2
- 2021
Stowa comes under Tempus Arte.1, 5
- 2023
Stowa moves back to Pforzheim.1, 5
- 2024
The M1, Stowa’s own movement.1, 5
Where Stowa leads
- Made, SpecificationThe B-Uhr
Walter Storz built observation watches with the Unitas 2812 from 1940.2, 7
- Based in, PlacePforzheim
Stowa moved to Pforzheim in 1935, left for Rheinfelden after its building was destroyed in 1945, and moved back into the city in 2023.1, 6
- Part of, TraditionPilot’s watches
Stowa built observation watches for the German air force in the Second World War and has made pilot’s watches on that pattern again since 1997.2, 3
- See also, CompanyA. Lange & Söhne
Stowa and A. Lange & Söhne were two of the five firms that built the German air force’s observation watch.3, 5, 8
- See also, CompanyLaco
The two Pforzheim firms were among the five makers of the wartime observation watch, and both make watches on its pattern today.2, 3, 9
- See also, PlaceThe Black Forest
Stowa moved from the Black Forest to Pforzheim in 1935.1, 5
Elsewhere in Watch Vault
- Current coverage
Stories that name Stowa, newest first (opens in a new tab), in Watch Vault Media.
Facts and sources
- Founded
- 19271, 5
- Founder
- Walter Storz1, 5
- Founded in
- Hornberg, in the Kinzig valley, Germany1, 5
- Based in
- Pforzheim, Germany1, 6
- Owner
- Tempus Arte GmbH & Co. KG, since 20211, 5, 6
- Official site
- stowa.de (opens in a new tab)6
Sources
- 1
The STOWA history: mechanical watches from the Black Forest since 1927 (opens in a new tab)
- 2
- 3
The History of the Pilot Watch Part Five: B-Uhr (opens in a new tab)
- 4
- 5
- 6
- 7
Military Watches of the World: Germany Part 1 (opens in a new tab)
- 8
- 9
Sources read November 11, 2026.