| Brand | Cartier |
| Model | Santos |
| Reference number | 3521 |
| Movement | Automatic |
| Case material | Steel |
| Bracelet material | Steel |
|
Caliber |
|
| Movement | Automatic |
| Movement/Caliber | 049 |
| Power reserve | 42 h |
| Number of jewels | 21 |
|
Case |
|
| Case material | Steel |
| Case diameter | 42 mm |
| Water resistance | 10 ATM |
| Bezel material | Steel, Gold |
| Crystal | Sapphire crystal |
| Dial | Grey |
| Dial numerals | Roman numerals |
|
Bracelet/strap |
|
| Bracelet material |
Steel
|
| Bracelet color | Silver |
| Clasp | Double-fold clasp |
| Clasp material | Steel |
