Alpina 490
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Alpina |
| Year | ~ |
Documents
No documents
Notes:
straight lever (ligne angulaire)
differences not known between 490, 490A
Dimensions
| Width | 19.35 lignes |
|---|---|
| Height | 3.8 mm |
| Hands diameter (H x M x S) | 1.5 x 0.7 x 0.2 mm |
Technical data
| Lift angle | 52° |
|---|---|
| Beat rate | 18000 BPH |
| Jewels count | |
| Power reserve | 45 hours |
| Shock protection | |
| Mobile stud carrier | false |
Complications
| Self winding | no |
|---|---|
| Date | false |
| Day | false |
| Hacking | false |
| Chronograph | false |
Mainspring
| GR code | GR3284 |
|---|---|
| Length | 320 |
| Height | 1.3 |
| Thickness | 0.11 |
| Diameter | 9.5 |