ETA 2660 Watch Movement: A Classic Manual Caliber
The ETA 2660 is a reliable manual-wind mechanical movement from the ETA 2600 family, produced primarily in the 1970s. Known for its sweep seconds hand and optional hacking feature, it powered numerous Swiss watches until around 2010. This caliber exemplifies ETA’s early precision engineering, serving as a precursor to modern workhorses like the 2824-2.
Key Specifications
Type: Manual wind, mechanical with sub-seconds or sweep seconds.
Dimensions: Compact size, approximately 9.0 mm thick; jewels include cap jewels for balance.
Functions: Hours, minutes, central or sub-seconds; optional hack mechanism.
Shock System: Options like Incabloc or ordinary protection.
Production Era: Active from 1971 (some sources suggest roots near 1945 via Geneva Sport influences) to 2010.
Historical Context
Originating in the 1960s-1970s ETA 2600 series, the 2660 emphasized durability for everyday wear. It appeared in branded watches like Geneva Sport models, with parts listed in Bestfit references from 1972. Its design prioritized serviceability, making it popular among watchmakers.
Spare Parts Availability
Common parts remain accessible for repairs:
Mainsprings (e.g., 1.50 x 0.100 x 300 x 9.0 mm).
Balance complete (Incabloc versions).
Wheels like center, third, fourth, and escape.
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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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