EB-Bettlach 8503.76 Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The EB-Bettlach 8503.76 is a Swiss manual wind watch movement introduced in the mid-1970s, known for its reliable construction and efficient timekeeping. Part of the EB 8500 series, this calibre features 17 ruby jewels, operates at a frequency of 21,600 vibrations per hour, and incorporates Novodiac shock protection, making it a standout pin lever movement of its time. Authentic spare parts are crucial for maintaining the movement’s precision, functionality, and collector value.
Key Technical Specifications
Calibre: EB-Bettlach 8503.76
Type: Manual wind, pin lever escapement
Size: 11.5 lignes (26.4 mm)
Frequency: 21,600 vibrations per hour
Jewels: 17 synthetic ruby jewels
Shock Protection: Novodiac system
Lift Angle: 45°
Era: Mid-1970s
Common Spare Parts
Balance Assembly & Novodiac Shock Protection: Provides stable oscillation and durable shock resistance
Mainspring & Barrel: Supplies consistent power to the movement
Winding Stem & Crown: Tailored split winding stems designed for the 8503.76 calibre
Ratchet Wheel & Click: Critical components for winding mechanism reliability
Gear Train Components: Includes center, third, fourth, and escape wheels for smooth power transmission
Hands & Dial Parts: Suitable for dials featuring sweep seconds and calendar functions
Case Screws & Fasteners: Secure the movement within the watch case
Maintenance and Sourcing Tips
Always verify the “8503.76” calibre marking for accurate parts compatibility
Source New Old Stock (NOS) or original EB Bettlach parts from reputable vintage suppliers
The calibre’s pillar construction requires specialized handling during repairs
Trusted suppliers specializing in vintage Swiss movements are recommended for authentic parts
Importance of Genuine Spare Parts
Ensures consistent and precise timekeeping
Maintains the watch’s historical authenticity and collector appeal
Supports lasting restoration quality and movement longevity
Using authentic EB-Bettlach 8503.76 spare parts is essential to preserving the precision, reliability, and heritage of this classic Swiss mechanical movement treasured by watchmakers and collectors 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