Hamilton 623 (ETA 2520)
Mechanical
Self-winding (rotor)
No photos yet
Notes
like ETA 2520, but Kif shock protection, different rotor shape, and anodized alumina barrel with life-time lubrication,
differences not known between 73, 623,
probably just the designators were changed in 1966, as samples with both numbers are known from this year
Dimensions
| Width | 25.6 lignes (57.75 mm) |
|---|---|
| Height | 4.5 mm |
| Stem height | 1.1 mm |
| Hands (H × M × S) | 1.5 × 0.9 × 0.21 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 46 h |
| Jewels | — |
| Shock protection | KIF |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | Zf698 |
|---|---|
| Height | 11 mm |
| Thickness | 0.12 mm |
| Length | 350 mm |
| Barrel diameter | 1.2 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Hamilton |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions