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FHF 186
Basic Information
| Name | FHF 186 |
|---|---|
| Manufacturer | Fabrique d’Horlogerie de Fontainemelon |
| Launch Year | 1940 |
| Caliber Family | Description base calibre H= 3.5mm: 175, 179: sub second 175-1, 179-1: sweep second 175-1-3, 179-1-3: sweep second, date 175-3, 179-3: sub second, date base calibre H= 3.8mm: 186: sub second 186-1: sweep second 186-1-3: sweep second, date 186-3: sub second, date Related calibers FHF 175, FHF 175-1, FHF 175-1-3, FHF 175-3, FHF 176, FHF 179, FHF 179-1, FHF 179-1-3, FHF 179-3, FHF 184, FHF 186, FHF 186-1, FHF 186-1-3, FHF 186-3, FHF 188, FHF 191, FHF 196, FHF 198, FHF 204, FHF 215, FHF 216, FHF 221, FHF 223, FHF 232, FHF 235 |
| 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 | 11.5 ‴ |
|---|---|
| Dimensions | 23.7 mm |
| Height | 3.8 mm |
| Further Measures | Mounting Diameter (Dm): 23.3 / 25.6mm Stem height (T): 1.9mm Mounting Height (F): 1.2mm |
| Power Reserve | 45 hours |
| Frequency | 18,000 vph |
| Jewels | 15 |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Shock Protection | Incabloc |
| 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 0.70 / 0.21mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: *)Many different balance staffs are recorded. But mostly the differences are small enough to apply or adapt even a "wrong" staff. differences not known between 186, 188, 198, 215, 216, 221, 223, probably catalogue designations for different bridge shapes (cf. other family members) Other data: balance staff: *) Flume K1...3: U1421 (K1, K2), U849 (K3) Ronda (balance- / hairspring-collet or shock device) Ronda 1042 (0.85 / 0.55mm) Ronda 1061 (0.90 / 0.50mm) Ronda 1039 (0.90 / 0.60mm) Ronda 2675 (Incabloc) Ronda 638 (Shock-Resist) Ronda 3213 (Super-Shock-Resist) stem: W603 mainspring / battery: Zf1124, 1.45 x 9.5 x 0.10 x 315mm balance staff ronda: 1042 (10,5-11,5) balance staff ronda: 1061 (10,5-11,5) balance staff ronda: 1039 (10,5-11,5) balance staff ronda: 3213 (10,5-11,5) stem ronda: 5 (10,5) Mainspring: 1.450 x 9.000 x 0.100 x 320.000 mm |
| Signature | 1) ca. 1940: Swiss Made (10.5" ) 2) ca. 1955: 15 jewels; Incabloc (11.5" ) 3-4) ca. 1945: Trebex ***, Swiss Made, 15 Jewels - FHF 186: Shock-Resist |
Compatible Parts
No parts linked yet for this caliber.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:32:38 PM |
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