The ETA 2834-2 is a reliable Swiss automatic movement renowned for its day-date complications and widespread use in mid-range watches since the 1970s.
Key Specifications
Introduced around 1974, the ETA 2834-2 measures 29mm in diameter (13 lignes) and 5.05mm thick, fitting standard 13-line cases. It beats at 28,800 vibrations per hour (4Hz) with 25 jewels, offering a power reserve of 38-40 hours. Features include Incabloc shock protection, a ball-bearing rotor, and quickset day/date mechanisms, with the day wheel uniquely positioned at 12 o’clock showing full English names.
Historical Context
Developed by ETA SA (part of the Swatch Group), the 2834 evolved from earlier workhorses like the 2824 but added a day function, distinguishing it for dress and dive watches. Production peaked in the 1980s-2000s, powering brands like Tissot, Hamilton, and Certina before Swatch phased out clones in 2020, boosting aftermarket demand.
Performance Highlights
Accuracy: Typically -12/+38 seconds per day, hackable for precise setting.
Winding: 27-40 crown turns for full wind; rotor needs ~1.5 hours of motion.
Variants: Standard nickel finish; options for 3H/6H date.
Reliability: Proven in harsh conditions, with easy servicing due to modular design.
Applications and Legacy
Found in countless affordable luxury pieces, the 2834-2 excels in daily wear for its smooth sweep seconds and bidirectional winding. Enthusiasts value its parts availability, though modern alternatives like Sellita SW240-1 mimic it closely. At ~300 words, this movement remains a horology benchmark for value and durability.
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
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