![Certina 28.10-420/423, Crown wheel with core](http://urdelar.se/cdn/shop/files/0000_certina_1_06fa2660-4309-46ea-9656-7c53bc63be71_{width}x.jpg?v=1706720870)
Certina 28.10-420/423, Crown wheel with core
- CERTINA original part in factory sealed packaging.
- Fits cal: 28.10, 28.15, 28.151
Versions:
- 28.10: 18.000 A/h, sub second.
- 28.15: 18.000 A/h, center second.
- 28.151: 18.000 A/h, center second, date.
- 28.16: 19.800 A/h, center second.
- 28.161: 19.800 A/h, center second, date.
- 28.163: 19.800 A/h, center second, date, circadian rhythm.