Bulova 5 BC Watch Spare Parts: Essential Guide for Collectors and Technicians
The Bulova 5 BC is a vintage manual wind watch movement, widely recognized for its reliable mechanics and classic durability. Introduced around 1972, this calibre measures 5.75 x 6.75 lignes (13 x 15.2 mm) and operates at 21,600 vibrations per hour. It utilizes 17 synthetic rubies, with a lift angle of 48°, and provides a power reserve of 43 hours. The compact, tonneau-shaped movement suits slim case designs and remains popular among restoration experts seeking parts for proper refurbishment.
Key Technical Specifications
Calibre: Bulova 5 BC
Movement Type: Manual wind
Size: 5.75 x 6.75 lignes (13 x 15.2 mm)
Jewels: 17 synthetic rubies
Frequency: 21,600 vibrations per hour
Lift Angle: 48°
Power Reserve: 43 hours
Era: ~1972
Common Spare Parts
Balance Assembly & Staff: Responsible for precise oscillation and accurate timekeeping
Mainspring & Barrel: Delivers consistent power to the gear train
Center, Third, Fourth Wheels: Critical for efficient power transfer
Escape Wheel & Pallet Fork: Regulate the movement’s timing and stability
Cannon Pinion & Hour/Minute Wheels: Drive time display hands accurately
Winding Stem & Crown: Facilitate winding and hand-setting
Click, Ratchet, Crown Wheels & Springs: Support winding system function and security
Case Screws & Fasteners: Securely hold the movement in the case
Hands & Dial Components: Must fit the original dial and hands layout for optimal display
Maintenance and Sourcing Tips
Confirm “5 BC” movement stamp for part compatibility
Select NOS or genuine Bulova parts from trusted suppliers or vintage dealers
Compact dimensions demand precise fitting and correct specialist tools
Reputable restoration experts and watch part suppliers offer authentic components
Importance of Authentic Spare Parts
Ensure accuracy and lasting mechanical reliability
Preserve the classic Bulova craftsmanship and collector value
Support high-quality restoration and continued use
Authentic Bulova 5 BC watch parts are essential for keeping these timeless movements precise, durable, and desirable for collectors and watchmakers.
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