Certina 25-65M
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Certina |
| Year | ~1975 |
Documents
No documents
Notes:
1975-1977
like 25-65, but balance with 3 instead 2 spokes, and bigger plate recess for lever cock
As old and new components were mutually interchangable, they were arbtrarily mixed during the transition periode, and also the signatures were scarcely correct.
Dimensions
| Width | 25.6 lignes |
|---|---|
| Height | 4.95 mm |
| Stem height | 1.55 mm |
| Hands diameter (H x M x S) | 1.5 x 0.9 x 0.18 mm |
Technical data
| Lift angle | 50° |
|---|---|
| Beat rate | 19800 BPH |
| Jewels count | |
| Power reserve | 44 hours |
| Shock protection | |
| Mobile stud carrier | false |
Complications
| Self winding | rotor |
|---|---|
| Date | false |
| Day | false |
| Hacking | false |
| Chronograph | false |
Mainspring
| GR code | |
|---|---|
| Length | |
| Height | 10.0 |
| Thickness | 0.105 |
| Diameter | 1.2 |