Cloisonné Enamel Centre · White Gold, North America Map
World Time 2523 — Cloisonné Enamel Centre · White Gold, North America Map
Possibly unique white-gold 2523 of 1955 with a North America enamel centre and 41 zones; Patek Philippe Museum.
Identifying details
- Unique piece
Documented as the only example made (e.g. marked “1/1”).
- World time
Louis Cottier’s heure universelle display: a 24-hour ring read against the names of cities in all time zones.
- Cloisonné enamel dial
Centre dial in cloisonné , made with fine gold wires separating the colours, often depicting a map.
Variants of 2523
Reference overview →| Variant | Production |
|---|---|
| Guilloché Centre | Undated |
| Cloisonné Enamel Centre | Undated |
| Cloisonné Enamel Centre · White Gold, North America MapCurrent | 1955 |
| Royal Blue Enamel Centre | Undated |
Case & movement
- Reference
- 2523
- Production
- 1955
- Case material
- 18k white gold
- Case diameter
- 35.5 mm
- Movement
- Manual winding
- Date
- No
- Caliber
- Patek Philippe 12-400 HU
Dial, bezel & hands
Unknown attributes are left out rather than guessed. Unstated details are inherited from the parent variant.
Movement
Patek Philippe 12-400 HU
Cottier’s second world-time system on the 12-400: a second crown at 9 turns an inner city disc under the crystal, protecting the city names from wear. Used in the refs. 2523 and 2523/1; Cottier’s monogram and the movement number appear on the main parts.
Manual winding · Introduced 1953 · 18 jewels