The ETA 2806 is a reliable manual-wind mechanical movement from the Swiss manufacturer ETA SA, produced primarily in the 1970s. Known for its slim profile and precision, it powered various mid-range watches during its era. This article explores its key features, history, and appeal to collectors and repair specialists.
Technical Specifications
Size and Build: 11.5 lignes (25.6mm diameter), 3.35mm height, ideal for thinner cases.
Jewels: 17 synthetic rubies reduce friction on pivots.
Frequency: 36,000 vibrations per hour (5 Hz) for smooth seconds hand sweep.
Power Reserve: Approximately 46 hours when fully wound.
Functions: Sweep seconds, date at 3 o’clock; lift angle of 53°.
Historical Context
Introduced around 1971 and phased out by 1977, the ETA 2806 belongs to ETA’s high-beat family, evolving from earlier 28xx series calibers. It emphasized manual winding without automatic complications, suiting dress watches. Production ceased amid the quartz crisis, making surviving examples sought after for vintage restorations.
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Stem, Crown, Hands & Spares might be available for this movement.
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