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ETA 1080
Basic Information
| Name | ETA 1080 |
|---|---|
| Alternative Name | Dugena 866 |
| Manufacturer | ETA |
| Launch Year | 1950 |
| Caliber Family | Description manual wind: 1080: 10.5" , H= 4.15mm 1081: 11.5" , H= 4.15mm 1093: 11.5" , date 1152: 10.5" , H= 4.5mm 1153: 11.5" , H= 4.5mm automatic: 1256: - 1258: date automatic, minor modifications: 1257: - 1259: date Related calibers ETA 1080, ETA 1081, ETA 1082, ETA 1083, ETA 1084, ETA 1085, ETA 1086, ETA 1087, ETA 1088, ETA 1089, ETA 1093, ETA 1094, ETA 1095, ETA 1096, ETA 1097, ETA 1098, ETA 1099, ETA 1140, ETA 1141, ETA 1142, ETA 1143, ETA 1144, ETA 1145, ETA 1146, ETA 1147, ETA 1148, ETA 1149, ETA 1152, ETA 1153, ETA 1154, ETA 1155, ETA 1156, ETA 1157, ETA 1174, ETA 1175, ETA 1176, ETA 1177, ETA 1178, ETA 1179, ETA 1180, ETA 1181, ETA 1182, ETA 1183, ETA 1256, ETA 1257, ETA 1258, ETA 1259, ETA 1285, ETA 1286, ETA 1287 |
| Is in house development | No |
| Is COSC certified | No |
Timegrapher
Beat rate
18,000 bph
Frequency
2.5 Hz
Lift angle
52 degrees
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Technical Details
| Lignes Dimensions | 10.5 ‴ |
|---|---|
| Dimensions | 23.7 mm |
| Height | 4.15 mm |
| Further Measures | Mounting Diameter (Dm): 23.3mm Stem height (T): 2.0mm Mounting Height (F): 1.5mm |
| Power Reserve | 42 hours |
| Frequency | 18,000 vph |
| Jewels | 17 |
| Lift Angle | 52 degrees |
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 | 1.50 x 0.90 x 0.21mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: various bridge shapes (cf. 1081) differences not known between 1080, 1082, 1084, 1086, 1088, 1094, 1096, 1098, 1140, 1142, 1144, 1146, 1148, 1154, 1156, 1174, 1176, 1178, 1180, 1182 Other data: balance staff: U1397/U3098 balance with/without screws stem: W1161 (W2767) Occasionally for manual wind and automatic different stems are listed, but both are equal. mainspring / battery: Zf1223, 1.50 x 9.5 x 0.11 x 290mm balance staff ronda: 694 (10,5-11,5) balance staff ronda: 832 (10,5-11,5) balance staff ronda: 4933 (10,5-11,5) balance staff ronda: 3307 (10,5-11,5) balance staff ronda: 887 (10,5-11,5) balance staff ronda: 3856 (10,5-11,5) balance staff ronda: 2697 (10,5-11,5) balance staff ronda: 3407 (10,5-11,5) balance staff ronda: 2699 (10,5-11,5) stem ronda: 227 (10,5) stem ronda: 1199 (10,5) Mainspring: 1.500 x 9.000 x 0.105 x 300.000 mm Ranfft mentioned about this caliber: There are variants with this quantity of jewels 15, 17, 19, 21 |
| Signature | Eska watch co, 17 jewels, swiss; Incabloc |
| Import Codes |
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Compatible Parts
1165 other caliber(s) share compatible parts with this caliber.
118 compatible part(s) available — Supporter feature.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | May 26, 2026, 4:43:58 AM |
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