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Omega 19" HN
Basic Information
| Name | Omega 19" HN |
|---|---|
| Manufacturer | Omega |
| Launch Year | 1894 |
| Is COSC certified | Yes |
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 | 19 ‴ |
|---|---|
| Dimensions | 42.86 mm |
| Height | 6.55 mm |
| Further Measures | Mounting Diameter (Dm): 42.7mm Dial Collar: 0.8mm Winding Gear: 1.0mm Stem height (T): 2.4mm Mounting Height (F): 0.4mm |
| Power Reserve | 35 hours |
| Frequency | 18,000 vph |
| Jewels | 16 |
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 | 1.90 x 1.25 / 0.30mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: 1894-1911 open face calibre bimetallic screw balance with 4 adjustment screws Breguet hairspring options: Reed's regulator, cam disc regulator First Omega calibre from Louis Brandt & Frère; it was made in grades A to D, where C and D offered chronometer precision. The Omega, engraved into the balance cock (Fig.3), should symbolize as last letter of the Greek alphabet the summit of technology. The name Omega of this calibre was given to the company not before 1903. The redesign, introduced 1911, was renamed to Omega 42.7 in 1919. Other data: balance staff: U320 stem: W248 mainspring / battery: 2.60 x 17.0 x 0.20mm swiss patent 8760: filed 08-01-1894, Louis Brandt & Frère, CH stem setting mechanism with clutch wheel and rocker bar, prevents moving of hands when switching to winding position, Ranfft mentioned about this caliber: There are variants with this quantity of jewels 7, 15, 16 |
| Signature | 1897: Omega, A - 1248889, +8760 (grade C, 15 jewels) |
Compatible Parts
No parts linked yet for this caliber.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:33:37 PM |
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