The ETA 2784 is a vintage automatic mechanical watch movement produced by ETA, renowned for its reliability in mid-20th-century timepieces.
Overview
Developed as part of ETA’s 27XX family, the 2784 features automatic winding with a date complication, making it suitable for dress and sports watches from brands like Tudor, Titoni, and Tourist. Produced primarily from the 1970s, it emphasizes robust construction with 25 jewels to reduce friction and enhance longevity. This ebauche movement powered affordable yet durable watches during an era of mechanical innovation.
Key Specifications
Dimensions: 11.5 ligne (25.6mm diameter), 5.2mm height for slim profiles.
Functions: Hours, minutes, central seconds, date window at 3 o’clock.
Frequency: 21,600 vibrations per hour (3 Hz) for smooth operation.
Power Reserve: Approximately 42 hours with self-winding rotor.
Jewels: 25, including shock protection for mainspring barrel.
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
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