What I found so far is that Gruen used three different nomenclatures in the 1920’s: Semithin (15 J), Verithin (17J), and Ultrathin (21J). But, they did use Verithin for 15 jewel watches before 1920. I believe Verithin was used as early as 1898.
Thanks, Ernie! That's great information! I learned something new today!
Regards! Mark
Posts: 3837 | Location: Estill Springs, Tennessee, USA | Registered: December 02, 2002
What I found so far is that Gruen used three different nomenclatures in the 1920’s: Semithin (15 J), Verithin (17J), and Ultrathin (21J). But, they did use Verithin for 15 jewel watches before 1920. I believe Verithin was used as early as 1898.
So, where does the "Ultra Veri-Thin" fit in? Here is a 17j example in 18k gold and black enamel.
Posts: 1414 | Location: Pasadena, California USA | Registered: November 11, 2005
According to Paul Schliesser, the author of the Web Page previously mentioned, the VeriThin became Gruens signature watch. This was their most popular watch. As the company grew they kept developing thinner watches. They added the Very-VeriThin models that combined ordinary VeriThin movements with extra-slim case designs that made the watches look even thinner. The Ultra-VeriThin was a less-expensive alternative to the UltraThin, occupying a niche between the UltraThin and the regular VeriThin.
Posts: 900 | Location: Wisconsin in the U.S.A. | Registered: April 28, 2008
This is one of my latest acquisitions. It is serial number 4-125142 and was a presentation watch in 1943 to a Rev. Robert N. DeRemer. This provides some documentation that the serial numbers with hyphens were from the late 1030's and 1940's era.
Posts: 900 | Location: Wisconsin in the U.S.A. | Registered: April 28, 2008