IWC 89 Zwyro
Mechanical
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Notes
1969, ca. 20 pieces
Breguet hairspring
adjustment screws on balance spokes
manually engraved, damaskeened, and gold plated by Zwyro
The watches were produced in 1969 with the Ref. 810, but sold in 1975. As the reference numbering system was meanwhile changed, they are recorded at IWC with the correct case- and movement numbers, but with the "wrong" Ref. 2600.
Zwyro was owned by Mr. Zwyssig, a former technical director from IWC. This is the reason for a double "Z" (back to back) hidden in the decoration.
Dimensions
| Width | 26.5 lignes (59.78 mm) |
|---|---|
| Height | 4.25 mm |
| Stem height | — |
| Hands (H × M × S) | — |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | — |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | — |
| Thickness | — |
| Length | — |
| Barrel diameter | — |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | IWC |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions