|Material:||10K gold filled|
|Size - diameter excluding winding crown:||31mm|
|Size - length including lugs:||37mm|
Pristine Gruen veri thin precision watch with Gruen 420 SS movement from 1944. This watch has a historical and esthetical value. The round watches used the excellent VeriThin 420SS movement. As Aegler used to manufacture movement for Gruen and Rolex, both firms did use of the same movement.
It is a mechanical wind movement driven by a Gruen 420 SS with 17 jewels. On the movement you have GXC letters, 420 SS. Original Silver Dial. The Pan American wristwatch has sweeps seconds (still fairly unusual in the 1940s), Arabic numbers for 1-12 around the outside of the dial, and an inner chapter ring with the numbers 13-24. The hands are good with gold color. The bezel is in 10K gold filled. The case is signed “Gruen W base Metal” with Guildite back inside. Inside the case you have the case serial number G541 370 with style number 534 and caliber 422.
The crown is signed Gruen. Brand new brown leather strap.
In 1879, Dietrich Gruen, a watchmaker living in Columbus, OH founded a Co named Gruen & Savage. At the turn of the 20th century, Gruen only used Swiss movement even though the production of the case and finishing were done in the US. Gruen made is own manual caliber called “Very thin”. In 1908, Gruen introduced watches for women’s and then a solid gold movement to celebrate its 50th anniversary. In the 1930’s, Gruen and Rolex used the same caliber in the “Duo-dial” and the “Prince”.
The mythical curvex model was introduced in 1935 and then the “Curvametric” in 1948 and “Autowind” in 1958.
Gruen 420 SS movement with 17 jewels.
Diameter excluding winding crown: 31mm
Length including lugs: 37mm