| Model | Geneve WGP Square Silver Boy's size |
| Reference | 511.415 |
| Year of Production | 1971 |
| Movement | Manual winding (Cal.620) |
| Country of Origin | Switzerland |
| Water Resistance | non-waterproof |
| Case Diameter | 27mm |
| Case Material | White Gold plated |
| Crystal | plastic |
| Lug Width | 16mm |
| Buckle Width | 14mm |