Gruen, Dietrich, PatentDuring his time as a watch repairman in Delaware, Ohio, Dietrich Gruen developed an improved center pinion for watches. Gruen’s…Gruen Watches AdvertisementMarketing the Gruen image was an important part of Frederick Gruen’s leadership of the company. In 1911, he hired the…J. Walter Thompson Co. House AdvertisementIn this 1919 edition of Printer’s Ink, an advertising trade magazine, the J. Walter Thompson Co. discusses their approach to…Diagram for Ordering Parts to Repair a “Dietrich Gruen” Pocket WatchEach Gruen watch had parts that were especially fitted to it. Watch repairmen could order these parts from the company.…Gruen Advice to Dealer RepairmenAt the start of his career, Dietrich Gruen worked as a watch repairman. In the 1920s, his company published a…Sign Post at the Entrance of the Gruen Guild WorkshopsIn 1913, the Gruens purchased land in Cincinnati for a new factory building, which they named “Time Hill.” It was…Diagrams of the VeriThin and Ultra-VeriThin WatchesIntroduced in 1904, Gruen’s VeriThin (also spelled Verithin) was about one-third thinner than conventional movements. It became one of the…Gruen Military WatchesWristwatches became a masculine accessory during World War I. By 1916, it had become fashionable for all men to wear…
Gruen, Dietrich, PatentDuring his time as a watch repairman in Delaware, Ohio, Dietrich Gruen developed an improved center pinion for watches. Gruen’s…
Gruen Watches AdvertisementMarketing the Gruen image was an important part of Frederick Gruen’s leadership of the company. In 1911, he hired the…
J. Walter Thompson Co. House AdvertisementIn this 1919 edition of Printer’s Ink, an advertising trade magazine, the J. Walter Thompson Co. discusses their approach to…
Diagram for Ordering Parts to Repair a “Dietrich Gruen” Pocket WatchEach Gruen watch had parts that were especially fitted to it. Watch repairmen could order these parts from the company.…
Gruen Advice to Dealer RepairmenAt the start of his career, Dietrich Gruen worked as a watch repairman. In the 1920s, his company published a…
Sign Post at the Entrance of the Gruen Guild WorkshopsIn 1913, the Gruens purchased land in Cincinnati for a new factory building, which they named “Time Hill.” It was…
Diagrams of the VeriThin and Ultra-VeriThin WatchesIntroduced in 1904, Gruen’s VeriThin (also spelled Verithin) was about one-third thinner than conventional movements. It became one of the…
Gruen Military WatchesWristwatches became a masculine accessory during World War I. By 1916, it had become fashionable for all men to wear…