| Model | Doué Signum Classique Ballpoint Pen |
| Ident No. | 08579 |
| Writing System | |
| Writing System | Ballpoint Pen with twist mechanism |
| Nib | – |
| Features | |
| Barrel | Special design featuring the Montblanc emblem engraved on black precious resin |
| Cap | Platinum-plated inlaid with Montblanc emblem |
| Trim | Three platinum-plated rings embossed with Montblanc brand name |
| Clip | Platinum-plated clip with individual serial number |
| Special Characteristics | Platinum-plated forepart decorated with Montblanc brand name |