The ETA 2824 movement is a classic creation by the Swiss manufacturer ETA SA Manufacture Horlogère Suisse, with the ETA 2824-2 being its most common variant. Below is a detailed overview:
The unregulated error of the ETA 2824-2 typically ranges from ±12 seconds per day, and can be adjusted to as low as ±5 seconds per day, delivering excellent timekeeping accuracy.
Durability & Reliability
Boasting a mature structure, the movement features high part interchangeability and easy maintenance. Its automatic winding system adopts a dual-ratchet mechanism, which enhances durability while reducing maintenance complexity.
Grade ClassificationThe ETA 2824-2 is available in four factory grades. While sharing the same dimensional specifications, the grades differ in regulation methods, surface finishing, balance springs, and anti-shock devices. Distinct grades also present varying levels of quality through the polishing craftsmanship of the bridges and rotors.
Brands & ApplicationsThe ETA 2824-2 is a top choice for numerous mid-to-high-end watch brands. It is widely used in entry-level models such as the Tissot Le Locle series and Mido Commander series, as well as in 10,000-yuan-range brands including Tudor and Oris.
Key Terminology Notes (for Clarity)
Power Reserve: The duration a watch can run without additional winding (after being fully wound).
Jewel Count: Refers to synthetic ruby bearings in the movement, which reduce friction between components (not decorative jewels).
Beat Rate (28,800 vph): Equivalent to 8 vibrations per second, a standard frequency for ensuring smooth needle movement and high precision.
Bi-directional Automatic Winding: The rotor (weighted oscillating part) winds the mainspring when rotating in either clockwise or counterclockwise direction, improving winding efficiency.
Type
White Movement, Gold Movement, White Engraved Movement, Fine-Polished White Movement
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