Hamilton Railroad / Intra-Matic / Broadway Lug Width
| Reference Number | Model | Lug Width |
| H38416 | Intra-Matic 68 Auto Chrono | 20mm |
| H38425 | Intra-Matic 40 | 20mm |
| H38429 | Intra-Matic Chronograph | 20mm |
| H38455 | Intra-Matic 38 | 20mm |
| H38735 | Intra-Matic 42 | 22mm |
| H40405 | Railroad Lady 32 | 16mm |
| H40415 | Railroad 38 Auto | 18mm |
| H40505 | Railroad 40 Auto | 20mm |
| H40515 | Railroad 42 Small Second | 22mm |
| H40555 | Railroad 40 Auto | 20mm |
| H40615 | Railroad 44 Small Second | 22mm |
| H40616 | Railroad 46 Chrono | 22mm |
| H40655 | Railroad 42 Skeleton | 22mm |
| H40656 | Railroad 44 Chrono | 22mm |
| H43311 | Broadway Day Date | 18mm |
| H43515 | Broadway Day Date Auto | 20mm |
| H43516 | Broadway Auto Chrono | 20mm |
| H43725 | Broadway GMT | 22mm |
