![Longines 470-220, Fourth wheel](http://urdelar.se/cdn/shop/files/0000_longines_7_f4c79978-3b7c-41ee-86e4-dded55169e65_{width}x.jpg?v=1699637821)
Longines 470-220, Fourth wheel
- LONGINES original part in factory sealed packaging.
- Fits Longines cal: 470
- Fits Certina cal: 15-20
Technical data: LONGINES cal: 470 (Certina 15-20)
- 32 jewels, automatic wind, (oscillating weight with ruby ball bearing).
- S: = 6.75''' 15.30 mm.
- H: = 4.60 mm.
- N: = 19.800 A/h.
- Power reserve: --
Versions: Longines
- 470: 19.800 A/h.
- 472: 21.600 A/h.
Versions: Certina
- 15-20: 6.75''' 19.800 A/h.
- 15-21: 6.75''' 21.600 A/h.
- 17-211: 7.75''' 21.600 A/h.
- 17-221: 7.75''' 21.600A/h, date, new balance.