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AS 1977-4
Basic Information
| Name | AS 1977-4 |
|---|---|
| Alternative Name | Durowe 1977-4 |
| Base Calibre | Durowe 1977-4 |
| Manufacturer | AS |
| Launch Year | 1972 |
| Caliber Family | Description 18000 A/h: 1012: - 1582: minor modifications 21600 A/h: 1677, 1719: - 1777: short plate edges round 1977: stronger mainspring, regulator new 1977-2: balance and barrel new 1977-2, 1978-2: winding gear new 1977-4: balance cock and regulator new 1977-5: click simplified Related calibers AS 1012, AS 1582, AS 1677, AS 1719, AS 1777, AS 1977, AS 1977-2, AS 1977-4, AS 1977-5, AS 1978-2 |
| Is COSC certified | No |
Technical Details
| Lignes Dimensions | 5.75 ‴ x 6.75 ‴ |
|---|---|
| Dimensions | 13 mm x 15.6 mm |
| Height | 3.5 mm |
| Further Measures | Mounting Diameter (Dm): 13.0 x 15.2mm Stem height (T): 1.7mm Mounting Height (F): 0.6mm |
| Power Reserve | 44 hours |
| Frequency | 21,600 vph |
| Jewels | 17 |
Complications and Specifications
| Shape | Barrel (Tonneau) |
|---|---|
| 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 | 1.00 x 0.55mm |
|---|---|
| Hand Count | 2 |
| Country Of Manufacture | (not set) |
| Notes | Remarks: 1972-1978 (1977-2, 1977-4) Other data: balance staff: U2936 stem: W2641 mainspring / battery: 1.50 x 6.0 x 0.065mm This caliber is identical to: Durowe 1977-4 |
| Signature | 1975: INT 1977-4, Dugena 2130, 17 Jewels; Incabloc (Durowe 1977-4, Dugena 2130) |
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | May 26, 2026, 4:43:41 AM |
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