GRUEN Watch Company  

One of the most important and prestigious American watch manufacturers. Gruen watch company was a watch manufacturer founded in 1894 as "D. Gruen & Son" by a brilliant German horologists, Dietrich Gruen and his eldest son Frederick G. Gruen. Years later, the second son. George J., joined the firm and the name was changed to "D. Gruen & Sons".  

"Gruen obtained a patent for an improved safety pinion, and it is the date recognized by the Gruen Watch Company as the start of its business." Early Gruen watches included pocket watches and wristwatches for men and women. 

The company quickly became a major player in the American watch industry, prove of that, one of the company's most significant contributions to the watchmaking industry, the Gruen Precision movement. Introduced in the 1930s, it was a highly accurate and reliable movement that quickly gained a reputation for excellence.
 
The Gruen Precision movement was an improvement over earlier Gruen movements and incorporated several new features, including a Breguet hairspring, a micrometer regulator, and a higher beat rate of 36,000 vibrations per hour. The movement was also designed to be more shock-resistant and durable than previous Gruen movements.
 
They were used in a range of watches, including both men's and women's models. It was particularly popular in chronograph watches, which required a high level of accuracy and precision.
 
Today, vintage Gruen watches with the Precision movement are highly sought-after by collectors and enthusiasts. These watches are prized for their historical significance, as well as their craftsmanship and reliability. 

GRUEN  -  The Precision Watch 

"The Gruen Precision is a nice, elegant watch with a movement that may not be seen as modern. Nonetheless, it offers an innovative style that is simply spectacular." 

GRUEN 
Precision 
17 Jewels 
Cal. N510SS 

Gruen Precision – Waterproof – Shock Resistant – Anti-Magnetic. 
 
This vintage Gruen Precision dress wristwatch, reference 510RSS dated from the 1960s is a classic and desirable timepiece!

It is a manual wind watch featuring an original Gruen Precision movement caliber N510SS with 17 jewels and a frequency of 18,000 beats per hour (2.5 Hz), 42-hour power reserve, sweep second hand, unadjusted, Swiss made. 
 
The N510SS was manufactured in the 1950s and is known for its accuracy and reliability. The movement is housed in a variety of Gruen watch models, including dress watches and chronographs. These watches often feature classic designs, such as thin cases and simple dials, that are still highly sought after by collectors today.

Cased in a 33.2mm silver-tone round case with fancy lugs design, base metal bezel and stainless steel back. Waterproof. 

It still has the original silver dial with silver Arabic Numerals, silver stick hour markers, luminous dots, and silver/luminous matching hands. The dial is signed with Gruen, Precision and 17 Jewels. 
  
It is coming with a brand-new black Hadley-roma genuine leather two-piece.  

After 60 years, this wristwatch is in good condition. it is a very attractive looking watch. Runs very well, keeps good time!

Thank you for looking!  Please feel free to contact us with any questions, or respectful offers. 

Movement: 
Gruen Watch Co. 
Seventeen 17 Jewels 
Cal. 710 RSS 
Unadjusted 
Swiss 

Case Markings: 
Gruen Watch Co. 
Stainless Steel Back 
510RSS
Made in France  

Gruen Precision 
Waterproof 
Shock-Resistant 
Antimagnetic 
Base Metal Bezel 
Stainless steel Back 

Measurements (mm):
Case 33.2  
Case w/Crown 34.5   
Case Lug to Lug 40.6    
Case Thickness 8.8   
Lug Width 18    
Band Width 18   

Vintage watches are traditionally smaller than today's watches. Men’s watches typically measure between 29-36mm wide (some larger, some smaller) excluding the crown. In the listing details we typically try to do our best to list all pertinent dimensions of a watch. If you don't see it, or we failed to do so, please reach out to us. Women’s watches from the 1900s-1970s were also much smaller than today's offerings. Please also feel free to ask any questions you have pertaining to size. 

We prefer to shoot photographs outside when weather is permitting. However, when we shoot indoors, please be aware that we shoot our photographs inside of lightboxes that are lit with 360 LED bulbs. This indeed magnifies any flaws. Usually, they are much less obvious to the naked eye. Having said that, we never photoshop any of our photography, remove blemishes, etc. We adjust the lighting, when necessary, but what you see is what you are getting, and we take pride in that.  

The condition is pre-owned.   
The item may have some signs of cosmetic wear but is fully operational and functions as intended. 
Please review the photos and feel free to ask any questions you may have.  
 
It will be carefully packed.  

Please view our other listings.  
Thank you for looking!  

WA-4341