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AS 229
Basic Information
| Name | AS 229 |
|---|---|
| Manufacturer | AS |
| Launch Year | 1925 |
| Is COSC certified | No |
Timegrapher
Beat rate
18,000 bph
Frequency
2.5 Hz
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Technical Details
| Lignes Dimensions | 11 ‴ |
|---|---|
| Dimensions | 24.85 mm |
| Height | 4.4 mm |
| Further Measures | Mounting Diameter (Dm): 24.45mm Stem height (T): 2.1mm Mounting Height (F): 0.5mm |
| Power Reserve | 32 hours |
| Frequency | 18,000 vph |
| Jewels | 6 |
Complications and Specifications
| Shape | Round |
|---|---|
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Manual |
| Escapement Type | Cylinder |
| Control Type | Balance Wheel |
| Winding Type | Stem Winding (Crown) |
| Setting Type | Pin Set (Pin-Push) |
Additional Information
| Hand Sizes | 1.50 x 0.40mm |
|---|---|
| Hand Count | 2 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: cylinder escapement unusual: crown mechanism with rocker bar, but ratchet on back side unknown whether the completely functionless crown wheel is standard Ranfft mentioned about this caliber: There are variants with this quantity of jewels 5, 6 |
| Signature | ca. 1925: - AS |
Compatible Parts
No parts linked yet for this caliber.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:31:05 PM |
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