| Beschriftung Zifferblatt / Marking Dial | Gruen Precision |
|---|---|
| Uhrwerk / Caliber | 117 |
| Modellnummer / Style Number | 8W |
| Modellname / Model Name | Quadron |
| Baujahr / Year | 1920s |
| Gruen Watch Catalogue No. | Gruen Quadron 9 |
| Copyrights Photos | (C) Peter Schill, free for non commercial use |
