Bulova 12 ECACD Watch Spare Parts: Comprehensive Guide for Collectors and Watchmakers
The Bulova 12 ECACD is a high-precision Swiss automatic movement introduced during the 1960s. Recognized for its efficient micro-rotor design and advanced functions, this calibre features an automatic winding system, a sweep second hand, and a date-change mechanism. It operates at 19,800 vibrations per hour, with a typical power reserve of 54 hours, making it highly valued for vintage Bulova watches.
Key Technical Specifications
Calibre: Bulova 12 ECACD
Movement Type: Automatic with micro-rotor
Features: Sweep second, date change between 23-24 hours
Jewels: 17 or 30 jewels (depending on configuration)
Diameter: 28.15 mm
Vibrations: 19,800 vph
Power Reserve: About 54 hours
Era: 1960s and later
Common Spare Parts
Micro-rotor & Axle: Powers the automatic winding with minimal height
Balance Wheel & Staff: Ensures precise oscillation and time regulation
Mainspring & Barrel: Stores and supplies consistent energy
Escape Wheel & Pallet Fork: Regulate gear engagement and escape control
Date Mechanism Components: Levers, springs, and wheels for the date change
Winding Stem & Crown: For manual winding and setting the time
Shock Absorbers: Protect delicate parts from shocks and impacts
Hands & Dial Assembly: Maintain traditional vintage appearance
Case Screws & Fasteners: Secure the movement inside the case
Maintenance & Sourcing Tips
Confirm the “12 ECACD” marking for authentic parts
Seek New Old Stock (NOS) or genuine Bulova components from trusted dealers
Utilize detailed exploded diagrams for precise repairs and exchanges
Leave complex repairs to professional watchmakers
Importance of Genuine Parts
Ensure accurate operation and longevity
Preserve the movement’s original craftsmanship and value
Guarantee reliable and effective restoration of vintage watches
Using authentic Bulova 12 ECACD spare parts guarantees the performance and integrity of these remarkable vintage micro-rotor movements cherished by 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