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Felsa 308
Basic Information
| Name | Felsa 308 |
|---|---|
| Manufacturer | Felsa |
| Launch Year | 1945 |
| Caliber Family | Description 302, 303, 308, 325: no second 324, 328: sweep second Related calibers Felsa 302, Felsa 303, Felsa 308, Felsa 324, Felsa 325, Felsa 328 |
| Is COSC certified | No |
Technical Details
| Lignes Dimensions | 5.75 ‴ x 8.5 ‴ |
|---|---|
| Dimensions | 12.9 mm x 19.5 mm |
| Height | 3.8 mm |
| Further Measures | Mounting Diameter (Dm): 12.9 x 19.2mm Stem height (T): 1.8mm |
| Power Reserve | 37 hours |
| Frequency | 18,000 vph |
| Jewels | 17 |
Complications and Specifications
| Shape | Rectangle |
|---|---|
| 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 | 1.20 x 0.60mm |
|---|---|
| Hand Count | 2 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: assigning to open or hidden winding gear impossible because movements are either not signed or with 302, therefore differences not known between 302, 303, 308, 325 Other data: balance staff: U654 stem: W654 mainspring / battery: Zf1099, 1.45 x 7.5 x 0.08 x 250mm balance staff ronda: 967 (5,25) stem ronda: 209 (5,25) Mainspring: 1.450 x 7.500 x 0.080 x 260.000 mm Ranfft mentioned about this caliber: There are variants with this quantity of jewels 15, 17 |
| Signature | 1-2) ca.1945: - Felsa 302 (Felsa 302) 3-4) ca.1950: Eska Watch Co, Swiss, 17 Jewels - Felsa 302 (Felsa 302) |
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:32:29 PM |
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