Alpina 273 open face (Unitas 31)
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Alpina |
| Year | ~ |
Documents
No documents
Notes:
open face calibre
brands: Alpina, Novice
options: bimetallic screw balance, Breguet hairspring, Reed's regulator
different click springs
attention: left handed ratchet-wheel screw
differences not known between 273, 6525
Dimensions
| Width | 41.1 lignes |
|---|---|
| Height | 5.3 mm |
| Stem height | 0.65 mm |
| Hands diameter (H x M x S) | 2.0 x 1.15 x 0.26 mm |
Technical data
| Lift angle | ° |
|---|---|
| Beat rate | 18000 BPH |
| Jewels count | |
| Power reserve | 33 hours |
| Shock protection | |
| Mobile stud carrier | false |
Complications
| Self winding | no |
|---|---|
| Date | false |
| Day | false |
| Hacking | false |
| Chronograph | false |
Mainspring
| GR code | Zf3568 |
|---|---|
| Length | 460 |
| Height | 16.0 |
| Thickness | 0.2 |
| Diameter | 2.1 |