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JLC 819
Basic Information
| Name | JLC 819 |
|---|---|
| Manufacturer | Jaeger-LeCoultre |
| Launch Year | 1959 |
| Caliber Family | Description 818: sub second 819: sweep second Related calibers JLC 818, JLC 819 |
| Is in house development | No |
| 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 | 9.25 ‴ |
|---|---|
| Dimensions | 20.87 mm |
| Height | 3.44 mm |
| Further Measures | Mounting Diameter (Dm): 20.8mm |
| Power Reserve | 40 hours |
| Frequency | 18,000 vph |
| Jewels | 17 |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Shock Protection | KIF |
| 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 | 1.30 x 0.80mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: 1959- Kif shock protection escapement wheel in Kif-Duofix combined settings Other data: balance staff: U2940 stem: W2857 mainspring: 0.90 x 7.5 x 0.09 x 270mm, T-end |
| Signature | 1966: 1834821, Jaeger-LeCoultre, Fab. Suisse, Kif-Flector (LeCoultre 818, sub second) |
| Import Codes |
|
Compatible Parts
No parts linked yet for this caliber.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Jul 23, 2025, 12:07:28 PM |
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