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Alpina 630
Basic Information
| Name | Alpina 630 |
|---|---|
| Alternative Name | Felsa 351 |
| Base Calibre | Felsa 351 |
| Manufacturer | Alpina |
| Launch Year | 1945 |
| Caliber Family | Description 630: sub second 634: sweep second Related calibers Alpina 630, Alpina 634 |
| 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 | 8.75 ‴ |
|---|---|
| Dimensions | 19.7 mm |
| Height | 3.3 mm |
| Further Measures | Mounting Diameter (Dm): 19.4mm Stem height (T): 1.7mm Mounting Height (F): 0.5mm |
| Power Reserve | 36 hours |
| Frequency | 18,000 vph |
| Jewels | 15 |
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 | 1.20 x 0.60 / 0.18mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Other data: balance staff: U537 stem: W137 mainspring / battery: Zf1013, 1.40 x 7.5 x 0.08 x 250mm Mainspring: 1.400 x 7.000 x 0.075 x 240.000 mm |
| Signature | ca. 1945: Felsa 351, 630 - Felsa 350 |
| Import Codes |
Compatible Parts
No parts linked yet for this caliber.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | May 26, 2026, 4:43:42 AM |
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