First Series, Cal. 12-120
Calatrava Calatravone 570 — First Series, Cal. 12-120
Undated
Early production with the 12-120.
No verified image of this watch yet
Identifying details
- Small seconds
Subsidiary seconds dial.
Variants of 570
Reference overview →| Variant | Production |
|---|---|
| First Series, Cal. 12-120Current | Undated |
| Second Series, Cal. 12-400 | Undated |
| Final Series, Centre Seconds | Undated |
| Stainless Steel | Undated |
Case & movement
- Reference
- 570
- Production
- Undated
- Case diameter
- 36 mm
- Movement
- Manual winding
- Date
- No
- Caliber
- Patek Philippe 12-120
Dial, bezel & hands
Unknown attributes are left out rather than guessed.
Movement
Patek Philippe 12-120
Patek’s first in-house wristwatch movement, developed under technical director Jean Pfister: 12-ligne, subsidiary seconds driven directly from the fourth wheel at 6, finger bridges, Breguet spring and swan-neck regulator. Replaced the LeCoultre ébauches of the first ref. 96s.
Manual winding · Introduced 1934 · 17 / 18 jewels