Calibre record · Automatic
ETA 2824-2
Documented
A robust, serviceable workhorse automatic used by many brands; its architecture also underlies the Sellita SW200.
- Manufacturer
- ETA
- Type
- Automatic
- Winding
- Automatic (bidirectional rotor), hand-winding, hacking
- Production
- 1971 (2824), 2824-2 revision later
- Country
- Switzerland
- Diameter
- 25.6 mm (11½ lignes)
- Height
- 4.6 mm
- Jewels
- 25
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- c. 38 h (longer in later versions)
- Oscillator / escapement
- Detached lever escapement
- Complications
- Date
Figures are those commonly published for the standard version; individual versions and grades differ. “Undocumented here” means the value has not yet been confirmed for this record.
History
The 2824 became ETA's standard high-beat automatic from the 1970s onward. It is supplied in several grades (Standard, Elaboré, Top, Chronometer) that differ in materials, finishing and adjustment.
