How do I identify my Gruen watch?

Movement #705-4-21355 Case #651383-700-337 Model/Type Number 337 Year of Manufacture: 1938 (late guild watch classified because of movement) Total Mass = 22.5 grams Does Not Include ...

This stunning bracelet, complete with matching earrings and a hidden Gruen watch, is a must-have for any fine jewelry collection. Crafted from 18k yellow...

FACTORY / HOUSE: Gruen Watch Company STYLE / REFERENCE: "Bumper" / Reference 460/611 METAL / MATERIAL: Yellow Gold Filled CIRCA / YEAR: DIMENSIONS / SIZE: Length 40mm X Diameter 33m...

FACTORY / HOUSE: Gruen Watch Company STYLE / REFERENCE: Art Deco METAL / MATERIAL: Gold Filled CIRCA / YEAR: 1930's DIMENSIONS / SIZE: Length 32mm X Width 17mm MOVEMENT / CALIBER: Manual Winding / 17 Jewels / Caliber Gruen 835 / Rolex 200...

FACTORY / HOUSE: Gruen Watch Company STYLE / REFERENCE: Art Deco / Reference Veri-Thin METAL / MATERIAL: Yellow Gold Filled CIRCA / YEAR: 1940's DIMENSIONS / SIZE: Diameter 43mm MOVE...

FACTORY / HOUSE: Gruen Watch Company STYLE / REFERENCE: Ristside or Batwing METAL / MATERIAL: Yellow Gold-Filled CIRCA / YEAR: 1950 DIMENSIONS / SIZE: 23mm Length X 47mm Width MOVEMENT / CALIBER: Manual Winding / 17 Jewels / Caliber 440 DIAL / HANDS: Original Silvered with Gilt Numerals / Gilt Leaf Hands ATTACHMENT / LENGTH: Original Strap Pig Skin Leather, 15mm / Regular Length WARRANTY: 18 months on the movement This is a "vault find" watch, it has been locked up for nearly 50 years, which means it needs a service. We will give it a factory quality service by our finest watchmaker as part of the purchase price before it is shipped out to you. This will delay shipping for a few days of course. LIFETIME SERVICE COMMITMENT This great looking Art Deco Watch is called the Ristside, it was produced by the legendary house of Gruen. The watch has been in our collection for nearly 50 years and it appears to be New Old Stock, as it is still fitted with its original Pig Skin Leather Strap. The strap is too dried out to actually use however (we can make you an exact one). We will supply it with a modern strap that will fit the original buckle. This watch is dependable and easy to service. In the 1930's, we became Gruen agents in Los Angeles, California. Gruen was a great company to work with because they had a large collection, great styling, they were innovative and offered great service to their customers. It is sad that they could not, like so many other American Watch Companies, withstand the Swiss and Japanese marketing. Founded in 1894 by Dietrich Gruen. The company had their American base in Cincinnati, Ohio, and it produced a wide variety of watches, including pocket watches, wristwatches, and chronographs. Gruen watches were known for their high quality and stylish designs, and they were popular with consumers for many years. In the 1920s, Gruen was one of the largest watch manufacturers in the United States. The company employed over 1,500 people and produced over 1 million...