The ETA 2490 is a manual-wind mechanical watch movement renowned for its slim profile and reliability in vintage timepieces. Produced by ETA SA, this caliber exemplifies Swiss precision engineering from the mid-20th century, often found in dress watches.
Key Specifications
Size and Type: 8.75 ligne (about 19.4mm diameter), manual wind with offset center wheel and sweep seconds hand.
Jewels: Typically 17 jewels, reducing friction for smooth operation.
Frequency: Beats at 18,000 vibrations per hour (2.5 Hz), balancing power reserve and accuracy.
Power Reserve: Approximately 40-45 hours when fully wound.
Design Features
The ETA 2490 stands out with its flat architecture, part of ETA’s early flatline family related to the 2890 series. It includes a small seconds subdial and features like an instantaneous date corrector in some variants. Related calibers such as 2491 and 2493 share its layout, aiding part interchangeability.
Historical Context
Introduced in the 1950s-1960s, the 2490 powered affordable luxury watches from brands like Omega and Tissot during ETA’s dominance in movements. Its simplicity made it ideal for restoration, with spare parts like pallet forks and sweep second wheels still available today.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
Watch Parts Enquiry
* If you are unable to fill out any of the required information fields, please type “N/A”.
Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
Mobile/WhatsApp: +91- 9841 360 340