Up for sale is a Vintage Beautiful Rare 1935 Gruen Guild A Conoruma Caliber / Movement 879 Ladies Art Deco Watch with 14K Gold Filled Case and Kreisler Rope Band in Great Working Condition. **Identical Movement to Rolex 170. Case back has engraving. Band shows signs of age at clasp. Watch case measures 12mm x 26mm. Outer case and band measure 6 1/2". Numerous pics can be zoomed if you click on pic. I am not responsible for any customs delays or charges with International sale.
| Name | Gruen 879 |
|---|---|
| Base Calibre | Rolex 170 |
| Manufacturer | Gruen |
| Launch Year | 1935 |
| Is COSC certified | No |
| Lignes Dimensions | 4.5 ‴ x 11 ‴ |
|---|---|
| Dimensions | 10.15 mm x 24.81 mm |
| Height | 3.2 mm |
| Further Measures | Mounting Diameter (Dm): 10.0 x 24.0mm |
| Power Reserve | (not set) |
| Frequency | 18,000 vph |
| Jewels | 17 |
| Shape | Cushion |
|---|---|
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Manual |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Stem Winding |
| Setting Type | Stem Set |
| Hand Sizes | 0.95 x 0.56mm |
|---|---|
| Hand Count | 2 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: Alpina Gruen Gilde 1929-1937 Breguet hairspring strange: indirectly driven minute identical movements: Alpina 879, Gruen 879, Rolex 170 manufacturer: Aegler (Rolex) Other data: balance staff: U1828 stem: W2813 mainspring / battery: 1.21 x 7.0 x 0.0675 x 255mm balance staff ronda: 1127 (4,5 x 11) Mainspring: 1.200 x 7.000 x 0.065 x 260.000 mm |
| Signature | ca. 1935: 1930777, 897, Gruen Guild .A., 17 Jewels, Swiss - 9777, Patents |
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 horologist, 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 was a watchmaking company based in America and a Swiss watch manufacturer in their own right, as well as buying movements from Aegler and other Swiss and German manufactures. Around 1930, during the Great Depresion, Gruen ceased buying movements and made all their Swiss movements in their own factory "Gruen Precision Factory" in Biel/Bienne, which it was first built in 1910 as a small factory and around 1920 a new factory was built the Gruen Precision Factory or "Precision Workshop". The highest quality movements that Gruen sold were produced in the Precision Factory, and Gruen watches containing these were marked "Precision". From 1927 to 1929, George T. Gruen was trained at Aegler; by the late 1930's, Gruen were making all thier own movements at the Precision Factory.
"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. Gruen watches were known for their elegant and thin design, marketed by the company as VeriThin.
Among the first companies to sell wristwatches, the Gruens split their manufacturing between two continents: exporting American technology to Germany and Switzerland and bringing German and Swiss traditions of craftsmanship to America. Gruen watches are generally considered Swiss watches, the company cased and timed its watches in the United States and imported the movements from Switzerland. There was some short period during the 1950's where Gruen made some movement in the United States.
GRUEN Guild –
"In 1917 the Gruen company built a new factory on the outskirts of Cincinanti at Time Hill. The building was loosely modelled on a medieval guild hall, and the company adopted the name 'The Gruen Watchmakers Guild', invoking an idea of a tradition of a medieval guild and a noble craft of watchmaking."
"The beautiful wrist models shown here bear eloquent testimony to the supremacy of Gruen Guild craftsmanship. Each is a sturdy, practical timekeeper, an ornament of rate distinction, a watch well suired to gratify the most exacting taste."
Payment is due within 2 days of purchase....if you cannot make payment within allotted time do not purchase. If payment is not made unpaid item case will be open no exceptions.