Seiko 66B
Mechanical
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Notes
stem mechanism without setting-lever spring
Diafix combined settings for escapement wheel
differences not known between 66B, 436, 4361
Dimensions
| Width | 23.6 lignes (53.24 mm) |
|---|---|
| Height | 3.85 mm |
| Stem height | 1.2 mm |
| Hands (H × M × S) | 1.5 × 0.9 × 0.2 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 45 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR3510 |
|---|---|
| Height | 1.35 mm |
| Thickness | 0.11 mm |
| Length | 380 mm |
| Barrel diameter | 9 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Seiko |
| Year | — |
| Family | — |
| Clone of | — |
Related calibers
Documents
None
Updated 7 days ago · 0 revisions