Bulova 11 BLA Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The Bulova 11 BLA is a highly respected manual wind mechanical watch movement produced in the late 1960s. Known for its durability and precision, this 17-jewel calibre has a diameter of approximately 26 mm and offers a power reserve of about 50 hours. The movement features a sweeping seconds hand and a calendar function with date setting via the hour wheel between 21:30 and 24:00, providing reliable performance for vintage Bulova timepieces.
Key Technical Specifications
Calibre: Bulova 11 BLA
Movement Type: Manual wind with sweep seconds and calendar function
Jewels: 17 synthetic rubies
Diameter: Approximately 26 mm
Frequency: 18,000 vibrations per hour
Power Reserve: Approximately 50 hours
Era: Late 1960s to early 1970s
Common Spare Parts
Balance Assembly & Staff: Critical for precise oscillation and timing
Mainspring & Barrel: Stores and supplies steady energy
Escape Wheel & Pallet Fork: Regulate accurate escapement function
Cannon Pinion & Hour/Minute Wheels: Power the watch hands
Winding Stem & Crown: Allow manual winding and setting
Calendar Mechanism Components: Enable effective date changing
Shock Absorbers: Protect delicate internal parts from shocks
Hands & Dial Components: Match original styling for authenticity
Case Screws & Fasteners: Secure the movement inside the case
Maintenance and Sourcing Tips
Verify the “11 BLA” movement marking to ensure part compatibility
Source New Old Stock (NOS) or genuine Bulova parts from authorized dealers
Use detailed exploded diagrams for accurate repair and replacement
Engage skilled watchmakers for complex servicing
Importance of Genuine Spare Parts
Maintain accuracy, durability, and overall longevity
Preserve vintage Bulova craftsmanship and collector value
Ensure professional-quality restoration
Using authentic Bulova 11 BLA spare parts is vital for sustaining the performance, heritage, and value of these classic manual wind mechanical watches 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