Vintage Gruen Men's Mechanical Wristwatch 819 Swiss 14k White Gold FilledProduct Description Item: Wristwatch Brand: Gruen Movement: Mechanical Case Material: 14k White Gold Filled Country: Swiss Jewels: Gender: Men's Caliber: 819 Size: 24mm About the brand: Founded in Ohio Gruen was one of the largest American watch manufacturers for the greater part of the 20th century. In fact, shortly after their relocation to Cincinnati, Gruen became the number one selling watch brand in the US. Like many brands their factory in Time