EB-Bettlach 8490 Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The EB-Bettlach 8490 is a Swiss manual wind mechanical watch movement valued for its precision and durability. It belongs to the EB 8400 series and features a manual winding system with sub-seconds function. The calibre measures approximately 12 lignes (27 mm) and operates at a frequency of 18,000 vibrations per hour, delivering reliable timekeeping for vintage watch enthusiasts and professionals. Authentic spare parts are critical to maintaining this movement’s accuracy and longevity.
Key Technical Specifications
Calibre: EB-Bettlach 8490
Type: Manual wind, pin lever escapement
Size: Approx. 12 lignes (27 mm)
Frequency: 18,000 vibrations per hour
Functions: Hours, minutes, sub-seconds
Era: Mid-20th century
Common Spare Parts
Balance Assembly & Staff: Crucial for stable oscillation and precise time regulation.
Mainspring & Barrel: Supplies consistent power to the movement.
Winding Stem & Crown: Compatible with EB 8490 for winding and setting functions.
Gear Train Components: Center, third, fourth, and escape wheels ensuring smooth power flow.
Pallet Fork & Escape Wheel: Key escapement components for accurate timing.
Jewels & Bearings: Synthetic ruby jewels reduce friction and wear.
Hands & Dial Parts: Sized for vintage dials with sub-seconds.
Case Screws & Clamps: Secure the movement firmly inside the watch case.
Maintenance and Sourcing Tips
Verify the caliber “8490” marking for part compatibility.
Source New Old Stock (NOS) or genuine EB Bettlach parts from trusted suppliers.
Regular servicing is essential for maintaining accuracy and prolonging movement life.
Importance of Genuine Spare Parts
Ensures consistent and reliable timekeeping.
Preserves the watch’s historical authenticity and collector value.
Supports quality restoration and durability.
Using genuine EB-Bettlach 8490 spare parts is vital for preserving the performance, reliability, and heritage of these classic Swiss mechanical movements cherished worldwide.
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]
Mobile/WhatsApp: +91- 9841 360 340