The ETA 2623 is a reliable automatic mechanical movement from the Swiss manufacturer ETA’s 2600 series, known for powering mid-range watches with date complications. Produced primarily in the late 20th century, it offers solid performance for everyday use, balancing affordability and precision. This article explores its key features, history, and applications in approximately 300 words.
Technical Specifications
Type: Automatic self-winding with manual wind option.
Size: 13 lignes (approximately 29mm diameter).
Beat Rate: 21,600 vibrations per hour (3 Hz), ensuring smooth seconds hand sweep.
Jewels: Typically 25, reducing friction in critical pivots.
Power Reserve: Around 38-42 hours when fully wound.
Functions: Hours, minutes, central seconds, and date at 3 o’clock (non-quickset).
Height: Slim profile at about 5.25mm, suitable for versatile case designs.
The movement features ETA’s robust construction, including a glucydur balance and anachron regulator for stable accuracy, often achieving -10/+20 seconds per day without certification.
Historical Context
Introduced as part of ETA’s workhorse 2600 family, the 2623 evolved from manual-wind predecessors like the ETA 2609, adding bidirectional automatic winding via a ball-bearing rotor. ETA, now under Swatch Group, produced it until the early 2000s, when regulations limited sales to non-Group brands. It remains popular in vintage Swiss watches from makers like Helvetia, valued for serviceability and parts availability.
Usage and Appeal
Brands such as Helvetia and others integrated the 2623 into dress and tool watches for its dependability. Today, collectors and repair specialists appreciate its straightforward design—easy to regulate and maintain with standard tools. While superseded by modern alternatives like the Sellita SW200, the ETA 2623 exemplifies Swiss engineering efficiency.
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Stem, Crown, Hands & Spares might be available for this movement.
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