Ricoh Auto (Ricoh-61)
Mechanical
Self-winding (rotor)
Date
Day
No photos yet
Notes
early samples with monometallic rotor
later riveted heavy-metal weight (example)
straight lever (ligne angulaire), only one banking pin (Fig.4)
The principle is known from the Glashütte lever escapement. There the lever has a pin, and its motion is limited by a hole in the plate. Likely Ricoh has noticed that a hole is lighter than a pin, and therefore placed the hole in the lever.
Dimensions
| Width | — |
|---|---|
| Height | 5.9 mm |
| Stem height | — |
| Hands (H × M × S) | 1.4 × 0.9 × 0.22 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 37 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | Yes |
| Day | Yes |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | — |
| Thickness | — |
| Length | — |
| Barrel diameter | — |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Ricoh |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions