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FEF 203-1
Basic Information
| Name | FEF 203-1 |
|---|---|
| Manufacturer | Fabrique d'Ébauches de Fleurier |
| Launch Year | 1945 |
| Caliber Family | Description 190: 10.5" , sub second 190-1: 10.5" , sweep second 210: 11.5" , sub second 210-1: 11.5" , sweep second Related calibers FEF 190, FEF 190-1, FEF 191, FEF 191-1, FEF 192, FEF 192-1, FEF 193, FEF 193-1, FEF 194, FEF 194-1, FEF 195, FEF 195-1, FEF 196, FEF 196-1, FEF 197, FEF 197-1, FEF 198, FEF 198-1, FEF 199, FEF 199-1, FEF 200, FEF 200-1, FEF 201, FEF 201-1, FEF 202, FEF 202-1, FEF 203, FEF 203-1, FEF 204, FEF 204-1, FEF 205, FEF 205-1, FEF 206, FEF 206-1, FEF 207, FEF 207-1, FEF 208, FEF 208-1, FEF 209, FEF 209-1, FEF 210, FEF 210-1, FEF 211, FEF 211-1, FEF 212, FEF 212-1, FEF 213, FEF 213-1, FEF 214, FEF 214-1, FEF 215, FEF 215-1, FEF 216, FEF 216-1, FEF 217, FEF 217-1, FEF 218, FEF 218-1, FEF 219, FEF 219-1, FEF 220, FEF 220-1, FEF 222, FEF 222-1, FEF 224, FEF 224-1, FEF 226, FEF 226-1, FEF 227, FEF 227-1 |
| 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 | 10.5 ‴ |
|---|---|
| Dimensions | 23.7 mm |
| Height | (not set) |
| Further Measures | Mounting Diameter (Dm): 23.3mm Stem height (T): 1.9mm Mounting Height (F): 0.5mm |
| Power Reserve | 38 hours |
| Frequency | 18,000 vph |
| Jewels | 15 |
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 | 1.40 x 0.80mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: various bridge shapes (cf. FEF 190) differences not known between 190-1...209-1 Other data: balance staff: U854 / U3015 balance with/without screws stem: W879 mainspring / battery: Zf1471, 1.80 x 10.0 x 0.10 x 350mm |
| Signature | ca. 1945: Roman, Adjusted, Swiss Made, 15 Jewels (FEF 190-1) |
Compatible Parts
No parts linked yet for this caliber.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:32:23 PM |
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