Gruen Watch Co.

The Gruen Watch Company
Company type	Private
Industry	Watchmaking
Predecessor	Columbus Watch Manufacturing Company, Columbus Watch Company, D. Gruen & Son, D. Gruen & Sons, D. Gruen, Sons & Co.
Founded	1894
Founder	Dietrich Gruen
Defunct	1958
Fate	Sold and divided; manufacturing moved to Switzerland
Headquarters	Cincinnati, United States
Area served	International
Key people	Dietrich Gruen (founder), Frederick Gruen, George J. Gruen
Products	Watches (pocket watches, wristwatches)
Owner	MZ Berger (2000–present)

The Gruen Watch Company stood as a prominent American watchmaker from 1894 until 1958, with its headquarters located in Cincinnati, Ohio. Established by Dietrich Gruen, a watchmaker and entrepreneur originally from Germany, the firm gained recognition for its innovative timepieces and its effective international business strategy.

Dietrich Gruen

Dietrich Gruen, born in Germany in 1847, trained as a watchmaker before emigrating to the United States. In 1874, he secured a patent for a safety pinion designed for pocket watches, which improved their durability and helped build his reputation as an inventive industry leader.

Columbus Watch Manufacturing Company

In 1876, Gruen joined forces with W.J. Savage to create the Columbus Watch Manufacturing Company in Columbus, Ohio. Initially, the company imported Swiss movements that incorporated Gruen's patented safety pinion, aiming to offer high-quality watches to the American market.

Columbus Watch Company

The business was restructured as the Columbus Watch Company in 1882 and began producing movements domestically. However, during the financial crisis known as the Panic of 1893, shareholders removed Gruen from leadership. The company continued operating under the name New Columbus Watch Company until 1903.

D. Gruen & Son

In 1894, Dietrich Gruen and his son Frederick established D. Gruen & Son, concentrating on designing pocket watch movements manufactured by German maker Paul Assmann and integrating sophisticated escapements developed by Moritz Grossman.

D. Gruen & Sons

With the addition of his son George J. Gruen in 1897, the firm was renamed D. Gruen & Sons and relocated to Cincinnati in 1898 to capitalize on improved market access and operational advantages.

D. Gruen, Sons & Co.

By 1900, the company evolved into D. Gruen, Sons & Co., becoming an international enterprise with production shifting to Switzerland. In 1903, it founded The Gruen Watch Manufacturing Company subsidiary in Biel/Bienne, Switzerland, expanding its global presence.

Gruen was a pioneer in offering Swiss-made movements that were assembled and adjusted within the United States, combining Swiss precision with American craftsmanship—a key competitive edge in the watch industry. Some of these movements were produced by Jean Aegler, who later became associated with Rolex.

The introduction of the VeriThin movement in 1904 marked a significant innovation by reducing thickness without compromising quality. Wristwatches were first launched in 1908, initially aimed at women; male adoption increased during World War I due to military requirements.

After Dietrich Gruen passed away in 1911, Frederick Gruen took over leadership. In 1917, the company centralized its operations at Time Hill in Cincinnati—a facility designed to embody its legacy and strategic vision. Around 1922, production of high-grade movements was consolidated at the Precision Factory in Biel/Bienne, reinforcing quality focus and international expansion.

The Gruen Watch Company

In 1922, D. Gruen, Sons & Co., The Gruen Watch Manufacturing Co (Biel/Bienne), and the Gruen National Watch Case Co merged to form The Gruen Watch Company, relocating to a new facility in Biel/Bienne by 1923.

Gruen promoted its origins as dating back to either 1876 or 1874, referencing the founding of the Columbus Watch Company and Dietrich Gruen’s initial patent respectively. By the mid-1920s, sales surpassed five million dollars annually, establishing it as the largest U.S.-based watch company by revenue and leading in average watch price.

The Baguette line was introduced in 1930 alongside a partnership with Alpina to produce co-branded Alpina/Gruen watches during the Great Depression. In 1935, the company unveiled its famous Curvex wristwatches for men—featuring curved cases that accommodated larger and more precise movements—and expanded this design to women's models a year later.

During World War II, production at Time Hill shifted toward military contracts, manufacturing precision gauges and instruments for aviation and medical uses. Meanwhile, some watch production continued at the Swiss Precision Factory.

Following World War II, American watchmakers faced declining market share against Swiss imports. While many competitors relocated manufacturing overseas, Gruen developed its '21' series featuring fully U.S.-made 21-jewel movements.

The founding family departed from ownership in 1953; by 1958, the company was sold off and divided. Under new management based in New York, all manufacturing transitioned exclusively to Switzerland. The Biel/Bienne plant closed in 1977; its premises were acquired by supplier J. Aegler and incorporated into Rolex’s production facilities.

Current Ownership (2000–Present)

The Gruen brand is presently under the global ownership of MZ Berger, which operates out of Long Island City in Queens, New York.

Significant Models

The Gruen Precision 510 is widely recognized as the inaugural timepiece worn by James Bond (portrayed by Sean Connery) in the 1962 motion picture Dr No. This model also appeared in several subsequent Bond films such as From Russia with Love, Goldfinger, You Only Live Twice, and Diamonds Are Forever.

Additional Reading

Crossman, Charles S., The Complete History of Watchmaking in America, Adams Brown Co., 1888
Lee, Alfred E., The History of the City of Columbus, Munsell & Co., Chicago, 1892
Pritchard, Kathleen H., Swiss Timepiece Makers 1775-1975, Phoenix Publishing, 1997

External Resources