Compare Studio
20217 vs 20357-2
Differences are highlighted. Rows where both references share a value are dimmed.
| Specification | ||
|---|---|---|
| Nickname | Polarouter, first series | Polerouter, micro-rotor |
| Production | 1954–1955 | 1955 |
| Era | First series | Micro-rotor era |
| Status | discontinued | discontinued |
| Case material | Stainless steel; gold-capped and solid gold executions | Stainless steel; gold-capped and solid gold executions |
| Construction | The original Genta case, with the twisted lugs and dished dial that define the line | Genta case with twisted lugs |
| Crystal | Acrylic | Acrylic |
| Dial text | POLAROUTER — the first-series spelling | POLEROUTER |
| Movement | Bumper automatic | Micro-rotor automatic |
| Caliber | 138SS | 215 |
| Manufacturer | Universal Genève | Universal Genève |
| Winding | automatic | automatic |
| Power reserve | — | ≈57 hours |
| Aliases | S20217 | — |