Switzerland| Brand | Louis Erard |
|---|---|
| Collection | 1931 |
| Model | 78229 NA02.BDC89 |
| Gender/Type | Men |
| Watch Style | Luxury, Sport |
| Movement | Automatic self-wind |
| Caliber mechanism | ETA 7750 Valjoux |
| Impermeability | 50 M (165 Foot) |
| Width | 44 |
| Case | Partial PVD, Stainless steel |
| Case Colour | Black, Steel |
| Glass | Anti-reflective sapphire |
| Clock Face | Indices |
| Dial Colour | Black |
| Strap/Bracelet Material | Leather |
| Strap/Bracelet Colour | Black |
| Functions | Chronograph, Date |
| Features | Luminiscent hands&markers, Tachymeter, Transparent case back |