Bulova 11 BLLA Watch Spare Parts: Detailed Guide for Collectors and Watchmakers
The Bulova 11 BLLA is a distinguished automatic mechanical movement primarily used in Bulova watches from around 1970. Known for its reliability and precision, it features between 17 to 23 jewels, a diameter of 26 mm, and a power reserve of approximately 45 hours. Running at a frequency of 18,000 vibrations per hour, this movement is well-regarded for blending robustness with elegant design, making it a favored calibre among collectors and watchmakers.
Key Technical Specifications
Calibre: Bulova 11 BLLA
Movement Type: Automatic mechanical movement
Jewels: 17 to 23 synthetic rubies
Diameter: 26 mm
Frequency: 18,000 vibrations per hour
Power Reserve: Approximately 45 hours
Era: Circa 1970
Common Spare Parts
Rotor & Bearing: Powers the automatic winding system
Balance Wheel & Staff: Controls precision oscillations for accurate timekeeping
Mainspring & Barrel: Store and release energy steadily
Escape Wheel & Pallet Fork: Regulates escapement and timing
Cannon Pinion & Hour/Minute Wheels: Transfer motion to the hands
Winding Stem & Crown: Enable manual winding and time/date setting
Shock Absorbers: Protect delicate components from shocks
Hands & Dial Assemblies: Maintain vintage authenticity and appeal
Case Screws & Fasteners: Secure movement inside the watch case
Maintenance and Sourcing Tips
Verify “11 BLLA” markings when sourcing spare parts
Prefer New Old Stock (NOS) or genuine Bulova components from trusted suppliers
Use exploded technical diagrams for precise repair and replacements
Engage professional watchmakers for intricate servicing
Importance of Genuine Spare Parts
Ensures movement accuracy, durability, and operational longevity
Preserves the craftsmanship and collector value of vintage Bulova watches
Enables high-quality, reliable restorations
Authentic Bulova 11 BLLA spare parts are vital to maintaining the performance, reliability, and vintage appeal of these prized automatic mechanical watches cherished by horology enthusiasts 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