Companies

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

A time line of Stowa from 1927 to today. Based in: Hornberg from 1927 to 1935, Pforzheim from 1935 to 1945, Engelsbrand from 2009 to 2023, Pforzheim from 2023. Owned by: The Storz family from 1927 to 1996, Jörg Schauer from 1996 to 2021, Tempus Arte from 2021. Dots mark the key dates.
Where Stowa has been based and who has owned it, from 1927 to today. The dots are its key dates.1, 5, 6

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

  1. 1927

    Walter Storz founds the company in Hornberg.1, 5

  2. 1935

    Stowa moves to Pforzheim.1, 5

  3. 1940

    Observation watches for the air force, in the Baumuster A form.2, 3

  4. 1945

    The Pforzheim building is destroyed on February 23; production moves to Rheinfelden.1, 5

  5. 1996

    Jörg Schauer buys the company from Werner Storz.1, 5

  6. 1997

    The wartime pilot’s watch is reissued.1, 2

  7. 2021

    Stowa comes under Tempus Arte.1, 5

  8. 2023

    Stowa moves back to Pforzheim.1, 5

  9. 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

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. 1

    The STOWA history: mechanical watches from the Black Forest since 1927 (opens in a new tab), Stowa (Tempus Arte GmbH & Co. KG), official

  2. 2

    History of STOWA pilot watches (opens in a new tab), Stowa (Tempus Arte GmbH & Co. KG), official

  3. 3

    The History of the Pilot Watch Part Five: B-Uhr (opens in a new tab), Monochrome Watches, independent

  4. 4

    5 Fakten über Laco (opens in a new tab), WatchTime (Germany), independent

  5. 5

    Stowa (opens in a new tab), Wikipedia, independent

  6. 6

    Imprint (opens in a new tab), Stowa (Tempus Arte GmbH & Co. KG), official

  7. 7

    Military Watches of the World: Germany Part 1 (opens in a new tab), Worn & Wound (Oren Hartov, 7 December 2018), independent

  8. 8

    Laco Uhrenmanufaktur (opens in a new tab), Wikipedia, independent

  9. 9

    History (opens in a new tab), Laco Uhrenmanufaktur, official

Sources read November 11, 2026.