Cyma 939
Mechanical
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Notes
open-face calibre
Breguet hairspring
negative stem mechanism for US market
Dimensions
| Width | 41.8 lignes (94.29 mm) |
|---|---|
| Height | 6.7 mm |
| Stem height | 0.5 mm |
| Hands (H × M × S) | 1.76 × 1.1 × 0.28 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 31 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR7070 |
|---|---|
| Height | 2.9 mm |
| Thickness | 0.18 mm |
| Length | 500 mm |
| Barrel diameter | 15 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Cyma |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions