Certina 15-20 Watch Spare Parts: A Concise Collector’s Guide
The Certina 15-20 is a classic Swiss-made automatic mechanical movement, prized for its robust construction and precision. Used widely during the 1960s, this calibre features a high jewel count and efficient power reserve, making it a reliable choice for vintage watch enthusiasts.
Key Specifications
Movement Type: Automatic mechanical
Calibre: Certina 15-20
Size: 6.75 lignes (approximately 15.3 mm)
Jewels: 32 synthetic jewels
Beat Rate: 19,800 vibrations per hour (vph)
Power Reserve: Approximately 39 hours
Lift Angle: 51 degrees
Era of Use: Circa 1963 onwards
Common Spare Parts
Mainspring: Core power component, essential for consistent movement function.
Balance Assembly: Includes balance wheel, hairspring, regulator, and shock protection for accurate timekeeping.
Gear Train Wheels: Center, third, and fourth wheels to transmit energy effectively.
Escape Wheel and Pallet Fork: Vital escapement components for smooth operation.
Setting and Winding Parts: Stems, crowns, setting levers, and springs for time adjustments and manual winding.
Hands and Dial Feet: Period authentic replacements to maintain collector value.
Bridges, Plates, and Screws: Structural components that ensure mechanical stability.
Maintenance and Sourcing Tips
Verify calibre marking “15-20” to ensure compatible spare parts.
Prefer New Old Stock (NOS) or genuine donor parts for quality and fit.
Lubricate with oils suited for vintage automatic movements to avoid damage.
Handle delicate escapement and balance components carefully during servicing.
Parts are available from specialist vintage watch parts suppliers and online retailers.
Importance of Genuine Spare Parts
Ensures reliable performance, accuracy, and longevity of your Certina 15-20.
Preserves the historical and collectible value of this iconic movement.
Essential for proper restoration and sustainable use.
Sourcing original spare parts guarantees your Certina 15-20 remains a prized piece of Swiss horology.
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Stem, Crown, Hands & Spares might be available for this movement.
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