| Beschriftung Zifferblatt / Marking Dial | Gruen Guild |
|---|---|
| Uhrwerk / Caliber | 877S |
| Modellnummer / Style Number | 8 |
| Modellname / Model Name | ‚Techni-Quadron‘ |
| Gruen Watch Catalogue No. | Gruen Quadron 73 |
| Copyrights Photos | (C) Peter Schill, free for non commercial use |
