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Dugena 3901
Basic Information
| Name | Dugena 3901 |
|---|---|
| Alternative Name | Unitas 6365 |
| Base Calibre | Unitas 6365 |
| Manufacturer | Dugena |
| Launch Year | 1960 |
| Caliber Family | Description 636, 3900: date 637, 3901: - Related calibers Dugena 3900, Dugena 3901, Dugena 636, Dugena 637 |
| Is COSC certified | No |
Technical Details
| Lignes Dimensions | 8.75 ‴ |
|---|---|
| Dimensions | 19.7 mm |
| Height | 3.3 mm |
| Further Measures | Mounting Diameter (Dm): 19.4mm Stem height (T): 1.6mm Mounting Height (F): 0.7mm |
| Power Reserve | 43 hours |
| Frequency | 21,600 vph |
| Jewels | 17 |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Shock Protection | Incabloc |
| 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 | Remarks: differences not known between 637, 3901 Other data: balance staff: U2618 stem: W2701 mainspring / battery: Zf1187, 1.50 x 7.5 x 0.08 x 245mm |
| Signature | ca. 1960: Nivada, Swiss, 17 Jewels - MK; Incabloc (Unitas 6360, 18000 A/h) |
| Import Codes |
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | May 26, 2026, 4:43:46 AM |
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