Alpina 227 (Junghans J41a/1 *)
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Alpina |
| Year | ~1928 |
Documents
No documents
Notes:
1928-
open face calibre
Breguet hairspring
*) Regarding the features, this calibre should have the Junghans designation J41a/1, but it is not yet known, whether it was also used in Junghans watches.
Dimensions
| Width | 41.85 lignes |
|---|---|
| Height | 4.5 mm |
| Stem height | 0.55 mm |
| Hands diameter (H x M x S) | 1.6 x 0.85 x 0.27 mm |
Technical data
| Lift angle | ° |
|---|---|
| Beat rate | 18000 BPH |
| Jewels count | |
| Power reserve | 35 hours |
| Shock protection | |
| Mobile stud carrier | false |
Complications
| Self winding | no |
|---|---|
| Date | false |
| Day | false |
| Hacking | true |
| Chronograph | false |
Mainspring
| GR code | Zf3032 |
|---|---|
| Length | 440 |
| Height | 16.0 |
| Thickness | 0.21 |
| Diameter | 1.5 |