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Eterna 1407U
Basic Information
| Name | Eterna 1407U |
|---|---|
| Manufacturer | Eterna |
| Launch Year | 1953 |
| Caliber Family | Description 1406: 10.5" , manual wind 1407: 11.5" , manual wind 1436: 10.5" , automatic Related calibers Eterna 1406G, Eterna 1406U, Eterna 1407G, Eterna 1407U |
| Is COSC certified | No |
Technical Details
| Lignes Dimensions | 11.5 ‴ |
|---|---|
| Dimensions | 26 mm |
| Height | 3.6 mm |
| Further Measures | Mounting Diameter (Dm): 25.6mm Stem height (T): 1.9mm Mounting Height (F): 1.4mm |
| Power Reserve | 48 hours |
| Frequency | 18,000 vph |
| Jewels | 21 |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Manual |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Stem Winding (Crown) |
| Setting Type | Stem Set (Crown Pull) |
Additional Information
| Hand Sizes | 1.50 x 0.90 x 0.22mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | (not set) |
| Notes | Remarks: strange: indirectly driven minute allows a relatively big balance (design similar to the Zenith 135) differences not known between 1407U, 1407G Other data: balance staff: U2555 stem: W2617 mainspring / battery: 1.30 x 10.0 x 0.10mm Ranfft mentioned about this caliber: There are variants with this quantity of jewels 17, 21 |
| Signature | 1953: 3866175, Eterna - Patented; Eterna-U |
| Import Codes |
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:32:18 PM |
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