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AS 1440
Basic Information
| Name | AS 1440 |
|---|---|
| Manufacturer | AS |
| Launch Year | 1940 |
| Caliber Family | Description 984 : 10.5" , manual wind, sub second 1002: 11.5" , manual wind, sub second 1007: 10.5" , manual wind, sweep second 1027: 11.5" , manual wind, sweep second 1114: 10.5" , manual wind, sub second, date hand 1128: 11.5" , manual wind, sub second, date hand 1154: 11.5" , manual wind, sub second, date 1191: 12.5" , automatic, sub second 1192: 12.5" , automatic, sweep second Related calibers AS 1002, AS 1007, AS 1009, AS 1010, AS 1013, AS 1015, AS 1021, AS 1024, AS 1027, AS 1028, AS 1029, AS 1032, AS 1033, AS 1035, AS 1038, AS 1041, AS 1048, AS 1050, AS 1055, AS 1077, AS 1084, AS 1089, AS 1091, AS 1114, AS 1128, AS 1141, AS 1147, AS 1153, AS 1154, AS 1160, AS 1161, AS 1191, AS 1192, AS 1211, AS 1218, AS 1231, AS 1259, AS 1277, AS 1285, AS 1313, AS 1377, AS 1440, AS 1614, AS 984 |
| 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 | 10.5 ‴ |
|---|---|
| Dimensions | 23.69 mm |
| Height | 3.8 mm |
| Further Measures | Mounting Diameter (Dm): 23.3mm Stem height (T): 1.8mm Mounting Height (F): 0.5mm |
| Power Reserve | 40 hours |
| Frequency | 18,000 vph |
| Jewels | 17 |
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 | 1.30 x 0.80 / 0.20mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: except bridge shapes no differences known between 984, 1009, 1010, 1013, 1028, 1033, 1035, 1038, 1048, 1050, 1055, 1077, 1084, 1089, 1091, 1141, 1211, 1218, 1231, 1259, 1277, 1285, 1313, 1377, 1440, 1614 Other data: balance staff: U841 / U3093 for balance with/without screws stem: W1131 mainspring / battery: Zf1389, 1.70 x 9.0 x 0.10 x 290mm balance staff ronda: 160 (10,5) stem ronda: 166 (10,5) Other data: Other data: Other data: Other data: Other data: Other data: Other data: Other data: stem ronda: 166 (10,5) Other data: balance staff ronda: 160 (10,5) Ranfft mentioned about this caliber: There are variants with this quantity of jewels 15, 17 |
| Signature | ca. 1940: Fab. Suisse (AS 984) |
Compatible Parts
No parts linked yet for this caliber.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:31:00 PM |
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