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ETA 2892
Basic Information
| Name | ETA 2892 |
|---|---|
| Manufacturer | ETA |
| Launch Year | 1975 |
| Is COSC certified | No |
Timegrapher
Beat rate
28,800 bph
Frequency
4 Hz
Lift angle
53 degrees
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Technical Details
| Lignes Dimensions | 12.5 ‴ |
|---|---|
| Dimensions | 28.4 mm |
| Height | 3.6 mm |
| Further Measures | Mounting Diameter (Dm): 28.0mm Ball Bearing: 0.1mm Stem height (T): 1.5mm Mounting Height (F): 1.1mm |
| Power Reserve | 42 hours |
| Frequency | 28,800 vph |
| Jewels | 21 |
| Lift Angle | 53 degrees |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Shock Protection | Incabloc |
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Automatic |
| Rotor Type | Central Rotor |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Automatic (Rotor-Driven) |
| Setting Type | Stem Set (Crown Pull) |
Additional Information
| Hand Sizes | 1.50 x 0.90 x 0.25mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: 1975-1983, 342123 due to low profile often used as base for modules with additional functions In the base movement a section opposite to the stem was left free (Fig.4), into which the gear of the automatic module extends. So despite the service friendly modular design the total height could be kept low. Other data: balance staff: ETA 2890 stem: ETA 2890 mainspring / battery: 1.05 x 10.5 x 0.115 x 475mm stem ronda: 2005 (11,5) stem ronda: 2264 (11,5) Ranfft mentioned about this caliber: There are variants with this quantity of jewels 17, 21 |
| Signature | 1-4) ca. 1980: Juvenia Mfg Swiss 11511, 17 Jewels - Patented; Incabloc (Juvenia 11511, without second) 5-6) 1982: Mido, Swiss, A/H 28800, 21 Jewels - Patented; Incabloc (Mido 12892) |
Compatible Parts
1015 other caliber(s) share compatible parts with this caliber.
119 compatible part(s) available — Supporter feature.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:32:13 PM |
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