| Beschriftung Zifferblatt / Marking Dial | Gruen Precision |
|---|---|
| Uhrwerk / Caliber | 117 |
| Modellnummer / Style Number | 70 |
| Modellname / Model Name | Quadron |
| Baujahr / Year | 1920s |
| Copyrights Photos | photographs courtesy of slinfiniti (http://www.ebay.com/sch/slinfiniti/m.html?) |
