IWC Portugieser Eternal Calendar IW5057-01
The Portugieser Eternal Calendar is the first secular perpetual calendar from IWC Schaffhausen and automatically considers the Gregorian calendar’s leap-year exceptions. In addition, this horological marvel also features a moon phase display with a mathematical accuracy of 45 million years. The Portugieser Eternal…
| Reference | IW5057-01 |
|---|---|
| Collection | Portugieser |
| Case diameter | 44.4 mm |
| Case material | Platinum |
| Case shape | Round |
| Case back | Open |
| Lug width | 22.00 mm mm |
| Movement | 52640 |
| Power reserve | 168 h |
| Dial colour | White |
| Indexes | Arabic Numerals |
| Hands | Feuille |
| Crystal | Sapphire |
This is a reference-catalog entry for the IWC Portugieser Eternal Calendar IW5057-01. WatchFlow's Watch Library lets a dealer attach a reference like this to a piece of stock in one click, so the brand, reference and specs are filled in automatically instead of retyped — then that record drives listings, invoices and reports. See how it fits the wider watch inventory management workflow.
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