Alpina 311 Curvex
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Alpina |
| Year | ~1935 |
Documents
No documents
Notes:
1935-1937
(Alpina Gruen Gilde 1929-1937)
first Curvex calibre
bimetallic screw balance, Breguet hairspring
Conoruma is Gruen's proprietary alloy for hairspring and balance with low temperature dependence
Dimensions
| Width | 17.65 lignes |
|---|---|
| Hands diameter (H x M x S) | 1.22 x 0.66 x 0.16 mm |
Technical data
| Lift angle | ° |
|---|---|
| Beat rate | 18000 BPH |
| Jewels count | |
| Power reserve | 40 hours |
| Shock protection | |
| Mobile stud carrier | false |
Complications
| Self winding | no |
|---|---|
| Date | false |
| Day | false |
| Hacking | false |
| Chronograph | false |
Mainspring
| GR code | Zf665 |
|---|---|
| Length | 265 |
| Height | 8.5 |
| Thickness | 0.093 |
| Diameter | 1.2 |