Alpina 291 (Moeris 19" B)
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Alpina |
| Year | ~ |
Documents
No documents
Notes:
open face calibre
set-lever spring between plates
Breguet hairspring
options: bimetallic screw balance, Reed's regulator
if 13 jewels, balance only with cap jewels
differences not known between 291, 1719
Dimensions
| Width | 42.5 lignes |
|---|---|
| Height | 5.25 mm |
| Stem height | 0.5 mm |
| Hands diameter (H x M x S) | 2.0 x 1.1 x 0.2 mm |
Technical data
| Lift angle | ° |
|---|---|
| Beat rate | 18000 BPH |
| Jewels count | |
| Power reserve | 34 hours |
| Shock protection | |
| Mobile stud carrier | false |
Complications
| Self winding | no |
|---|---|
| Date | false |
| Day | false |
| Hacking | false |
| Chronograph | false |
Mainspring
| GR code | Zf3509 |
|---|---|
| Length | 500 |
| Height | 17.0 |
| Thickness | 0.21 |
| Diameter | 2.0 |