Compare Studio
6B/346 vs IW328201
Differences are highlighted. Rows where both references share a value are dimmed.
| Specification | ||
|---|---|---|
| Production | 1948–1984 | 2022–present |
| Era | Military Mark XI | Modern Mark XX (cal 32111) |
| Status | discontinued | current |
| Case diameter | 36mm | 40mm |
| Case material | Stainless steel | Stainless steel |
| Construction | Soft-iron antimagnetic cage | Soft-iron inner cage |
| Crystal | Acrylic | Sapphire |
| Water resistance | Splash-resistant | 100m |
| Dial | Black | Black or blue |
| Hands | Baton (early), then updated | Sword hands |
| Lume | Radium then tritium | Super-LumiNova |
| Lume type | — | Super-LumiNova |
| Movement | Manual | Automatic |
| Caliber | 89 | 32111 |
| Manufacturer | IWC | IWC |
| Winding | manual | automatic |
| Power reserve | — | ~120 hours |
| Complications | Hacking seconds | Date |
| Aliases | Mark XI | — |