Alpina 890 (Minerva 20)
Mechanical
Chronograph
No photos yet
Notes
Breguet hairspring
like Minerva 13-20 with modified balance cock
Dimensions
| Width | 28.8 lignes (64.97 mm) |
|---|---|
| Height | 6.4 mm |
| Stem height | — |
| Hands (H × M × S) | 1.8 × 1.15 × ? mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | — |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | Yes |
Mainspring
| GR code | Zf1250 |
|---|---|
| Height | 11.5 mm |
| Thickness | 0.13 mm |
| Length | 360 mm |
| Barrel diameter | 1.5 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Alpina |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions