Dietrich was born in Osthofen, Germany, in 1847, and started his watchmaking career at age 15
Gruen was one of the most important and prestigious American watch manufacturers founded by a brilliant father-and-son team of horologists, Dietrich and Fred Gruen. Gruen split their manufacturing between two continents, exporting American technology to Germany and Switzerland, and bringing German and Swiss traditions of craftsmanship to America.
After World War II, the American watch industry began to decline. Fred died in 1945, and his brother George died in 1952. During the 1950s the Gruen Watch Company developed serious problems, went deeply into debt, and eventually was broken up and sold. From 1958, only the Swiss Gruen factory remained, and they continued to manufacture watches under the Gruen name.
Gruen Precision Chronograph wristwatch. Polished stainless steel case with silvered starburst style dial with polished silver raised hour batons. Twin chronograph sub-registers. Circular chronograph buttons at the ‘2’ and ‘4’ positions. Reverse with polished screw-on style case-back and a case size of 36mm. 770R calibre movement.
Case in excellent to near mint condition with a near perfect polished and satin finish remaining. Original dial with a nice ‘soft’ age patination. The movement clean and in working condition.