| Brand: | Universal |
|---|
Unlike most movement manufacturers, Universal uses the same calibre number for movements with different complications. Instead, the calibre number corresponds to the diameter and hairspring used.
| Breguet Hairspring | Flat Hairspring | |
| 12”’ | Universal 281 Uni-Compax Universal 281 Compax Universal 281 Tri-Compax | Universal 381 |
| 12.25”’ | Universal 282 | |
| 13”’ | Universal 283 | Universal 383 |
| 13.5”’ | Universal 284 | |
| 14”’ | Universal 285 | Universal 385 |
| 15”’ | Universal 287 | Universal 387 |
| 15.25”’ | Universal 288 | |
| 15.75”’ | Universal 292 |
| Production: – | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
