Bulova 11 AOACB Watch Spare Parts: Comprehensive Guide for Collectors and Watchmakers
The Bulova 11 AOACB is a reliable and sophisticated automatic mechanical watch movement manufactured roughly between 1964 and 1980. This calibre measures 26 mm in diameter and features 17 to 23 jewels, offering a power reserve of approximately 40 hours and operating at 21,600 beats per hour. The 11 AOACB is distinguished by its indirectly driven minute hand, which allows for a larger balance wheel and a slim profile. It includes an automatic winding system, sweep seconds, and day-date complications, making it a versatile movement for vintage Bulova watches.
Key Technical Specifications
Calibre: Bulova 11 AOACB
Movement Type: Automatic with sweep seconds, day-date complications
Jewels: 17 to 23 synthetic rubies
Diameter: 26 mm
Frequency: 21,600 vph
Power Reserve: Approximately 40 hours
Production Period: 1964 – 1980
Common Spare Parts
Rotor & Bearing: Powers automatic winding
Balance Wheel & Staff: Controls accurate oscillation
Mainspring & Barrel: Stores and releases consistent power
Escape Wheel & Pallet Fork: Regulates timing precision
Cannon Pinion & Hour/Minute Wheels: Drive time and date hands
Winding Stem & Crown: Manual winding and setting functions
Day-Date Mechanism Components: Levers, springs, and correctors for quick adjustment
Shock Absorbers: Protect delicate components from impact
Hands & Dial Assemblies: Period-correct replacements desired
Case Screws & Fasteners: Secure movement inside the case
Maintenance and Sourcing Tips
Verify “11 AOACB” marking for part compatibility
Source genuine or New Old Stock (NOS) parts from reputable dealers
Use technical diagrams for accurate part fitting
Seek professional watchmakers for servicing and restorations
Importance of Genuine Spare Parts
Ensures optimal performance and longevity
Maintains watch heritage and collector appeal
Facilitates high-quality restoration and reliability
Using authentic Bulova 11 AOACB spare parts is crucial for preserving the function, durability, and vintage value of these iconic automatic watches beloved worldwide by horology enthusiasts.
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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