Laco
A Pforzheim watchmaker that grew out of Lacher & Co., one of the five makers of the German air force’s observation watch in the Second World War. Its range is built mostly around pilot’s watches on that wartime pattern.
Founded 1925, Pforzheim, Germany
Swiss movements, then its own
The name joins the opening syllables of Lacher and Co. The partners began by fitting Swiss movements into German cases of their own design. To make Pforzheim less dependent on Swiss suppliers, Ludwig Hummel set up Durowe (Deutsche Uhren-Rohwerke) in 1933, which made movements for Laco and sold them to other German makers.2, 5, 6
During the Second World War Laco was one of five suppliers of the large observation watch, or B-Uhr, to the German air force, alongside A. Lange & Söhne, Stowa, Wempe and IWC Schaffhausen. The military fixed the design; Laco’s versions ran on Durowe’s hand-wound D5 calibre.1, 2, 3, 6
Rebuilding, Timex and quartz
Pforzheim was largely destroyed in 1945, but Laco kept making and selling watches, and production grew during the rebuilding. In 1952 the Laco Sport carried Durowe’s automatic calibre 552, the Duromat; in 1961 the Laco Electric ran on a Durowe movement with an electrically driven balance. Laco says it was the first working electronic wristwatch made in Germany.1, 2, 6
In 1959 Hummel sold Laco and Durowe to the American Timex group. When cheap, accurate Japanese quartz watches took over in the 1970s, Laco lost ground. A sister firm, the Erich Lacher Uhrenfabrik, kept producing throughout, and in 1988 its managing partner, Horst Günther, bought the rights to the Laco name; the new Laco Uhrenmanufaktur GmbH worked mainly on private-label watches.2, 5, 6
Back to the pilot’s watch
In 2000 Laco returned to its own past with a limited series of recreated wartime pilot’s watches at the original 55 mm, with Durowe movements. Most of its watches now follow the two wartime dial patterns, Baumuster A and B, named after German cities with airports and fitted mainly with Swiss Sellita movements, or Japanese Miyota movements on cheaper models.1, 2, 5, 6
Its newest pilot’s watches are certified to DIN 8330, the German pilot’s-watch standard: sixteen tests in three groups, some carried out by the aerospace engineering department of FH Aachen University of Applied Sciences.8
Key dates
- 1925
Lacher & Co. is founded in Pforzheim.1, 2, 6
- 1933
Ludwig Hummel founds the movement maker Durowe in Pforzheim.2, 5, 6
- 1952
The Laco Sport, with Durowe’s automatic Duromat calibre.2, 6
- 1959
Hummel sells Laco and Durowe to Timex.5, 6
- 1961
The Laco Electric.2, 6
- 1988
Horst Günther buys the rights to the Laco name.2, 5, 6
- 2000
A limited series of recreated wartime pilot’s watches.1, 5, 6
Where Laco leads
- Made, SpecificationThe B-Uhr
Lacher & Co. built observation watches on Durowe movements.1, 9
- Based in, PlacePforzheim
Laco has been in Pforzheim since Lacher & Co. was founded there in 1925, and grew up alongside the Pforzheim movement maker Durowe.1, 6
- Part of, TraditionPilot’s watches
Laco built observation watches for the German air force in the Second World War, and pilot’s watches now make up most of its range.1, 3, 6
- See also, HistoryJapan builds a watch industry
Japanese Wikipedia says Takano of Nagoya made Laco-branded watches from 1954.10
- See also, CompanyA. Lange & Söhne
Monochrome describes Laco and Lange as the two observation-watch makers with German movements of their own.3
- See also, CompanySinn
Sinn says it initiated TESTAF, the scheme on which DIN 8330 is based; Laco says its current pilot’s watches are certified to DIN 8330.8, 11, 12
- See also, CompanyStowa
The two Pforzheim firms were among the five makers of the wartime observation watch, and both make watches on its pattern today.1, 3, 13
Elsewhere in Watch Vault
- Current coverage
Stories that name Laco, newest first (opens in a new tab), in Watch Vault Media.
Facts and sources
- Founded
- 19251, 2, 6
- Founders
- Frieda Lacher and Ludwig Hummel5, 6
- Founded in
- Pforzheim, Germany1, 6
- Based in
- Pforzheim, Germany2, 4
- Official site
- laco.de (opens in a new tab)4
Sources
- 1
- 2
- 3
The History of the Pilot Watch Part Five: B-Uhr (opens in a new tab)
- 4
- 5
Laco Watch Company: A Brand Highlight with a Family Perspective (opens in a new tab)
- 6
- 7
- 8
- 9
Military Watches of the World: Germany Part 1 (opens in a new tab)
- 10
- 11
- 12
- 13
Sources read November 11, 2026.