| Lange & Sohne Watch Index | Internet Wristwatch Index | How to regulate mechanical watches |
| Calibre | Case | Strap | Dial | Diameter (mm) |
Height (mm) |
Model Number |
| L001.1 | platinum | croc | black and silver | 43 | 15.3 | 404.035 |
| Link to Datograph-Perpetual section of A. Lange & Sohne website |