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Cortebert 476-II
Basic Information
| Name | Cortebert 476-II |
|---|---|
| Manufacturer | Cortébert |
| Launch Year | 1915 |
| Caliber Family | Description 18" : 473: open face, separate escape-wheel cock 474: open face, common cock for all wheels 484, 486, 487, 495: like 473, 474, differing details not known 18" , different balance: 479: open face, common cock for all wheels 485: hunter, center-wheel bearing in barrel bridge 19" : 476: open face, separate escape-wheel cock 477: open face, common cock for all wheels Related calibers Cortebert 473-I, Cortebert 473-II, Cortebert 474-I, Cortebert 474-II, Cortebert 476-I, Cortebert 476-II, Cortebert 477-I, Cortebert 477-II, Cortebert 479, Cortebert 484, Cortebert 485, Cortebert 486, Cortebert 487, Cortebert 495 |
| Is COSC certified | No |
Technical Details
| Lignes Dimensions | 19 ‴ |
|---|---|
| Dimensions | 43.05 mm |
| Height | 5.5 mm |
| Further Measures | Mounting Diameter (Dm): 42.2mm Stem height (T): 2.3mm Mounting Height (F): 0.55mm |
| Power Reserve | 40 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 | 1.95 x 1.10 / 0.30mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | (not set) |
| Notes | Remarks: open face calibre setting lever between plates (Fig.3) This sticks out of the movement when setting, and mostly the movement can only be uncased with the crown in winding position. bimetallic screw balance with 2 adjustment screws options (Fig.1): Breguet hairspring Reed's regulator This movement family was obviously an experiment subject. Most registers ignore this, but Flume at least lists the variants I and II of the Cortebert 474 with differing setting bridges. As far as these variants are also noticed for other calibres, they are here listed accordingly with the suffixes I and II. Other data: balance staff: U251 stem: W1499 mainspring / battery: Zf3503, 2.00 x 16.5 x 0.21 x 470mm Ranfft mentioned about this caliber: There are variants with this quantity of jewels 15, 16 |
| Signature | ca. 1915: 237 - 798237 |
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:31:27 PM |
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