The ETA 2801-1 is a reliable hand-wound mechanical movement from ETA SA, a Swatch Group powerhouse known for precision Swiss engineering. This 11½ ligne caliber excels in vintage and custom watch builds due to its slim profile and robust performance.
Key Specifications
Size and Build: 25.6mm diameter, 3.35mm height; 17 jewels reduce friction for longevity.
Beat Rate: 28,800 vibrations per hour (4 Hz) for smooth sweep seconds.
Power Reserve: 42 hours, ideal for daily winding without constant attention.
Functions: Hours, minutes, central seconds; ETACHRON regulator for accuracy.
Historical Context
Introduced in the late 20th century, the ETA 2801-1 evolved into variants like the 2801-2, serving as a base for many independent watchmakers. Its manual wind design appeals to purists avoiding automatics, often seen in dress watches or skeletonized versions. Production as new old stock ensures availability for repairs.
Performance and Use
Accuracy hovers around -10/+20 seconds per day, hackable for precise setting. Compatible with hands (0.90/1.50/0.25mm) and analog displays, it powers affordable luxury pieces. Enthusiasts value its serviceability, with parts widely available despite Swatch’s 2011 export restrictions.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
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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