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Longines 19AS
Basic Information
| Name | Longines 19AS |
|---|---|
| Manufacturer | Longines |
| Launch Year | 1952 |
| Caliber Family | Description 19A: sub second 19AD: sub second, date 19AS: sweep second 19AS: sweep second, date Related calibers Longines 19A, Longines 19AD, Longines 19AS, Longines 19ASD |
| Is COSC certified | No |
Timegrapher
Beat rate
18,000 bph
Frequency
2.5 Hz
Lift angle
50 degrees
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Technical Details
| Lignes Dimensions | 11.25 ‴ |
|---|---|
| Dimensions | 25.38 mm |
| Height | 6 mm |
| Further Measures | Mounting Diameter (Dm): 25.3mm |
| Power Reserve | 39 hours |
| Frequency | 18,000 vph |
| Jewels | 19 |
| Lift Angle | 50 degrees |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Shock Protection | Incabloc |
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Automatic |
| Rotor Type | Central Rotor |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Automatic (Rotor-Driven) |
| Setting Type | Stem Set (Crown Pull) |
Additional Information
| Hand Sizes | 1.35 x 0.76 x 0.19mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: 1952- excenter winding mechanism early samples with Breguet hairspring Other data: balance staff: U2405 stem: W2521 balance staff ronda: 4041 (11,5) stem ronda: 1063 (11,25) Mainspring: 1.300 x 8.000 x 0.080 x 260.000 mm Ranfft mentioned about this caliber: There are variants with this quantity of jewels 17, 19 |
| Signature | 1-3) 1953: 8891381, Longines Automatic, Longines Watch Co Swiss, 17 Jewels - Longines; Incabloc (Breguet hairspring) 4-6) 1956: 9923999, LXW, Longines Automatic, Longines, 19 Jewels - Longines; Incabloc (flat hairspring) |
| Import Codes |
Compatible Parts
884 other caliber(s) share compatible parts with this caliber.
63 compatible part(s) available — Supporter feature.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:33:21 PM |
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