Certina 13-20 Watch Spare Parts: A Guide for Collectors and Restorers
The Certina 13-20 is a classic Swiss mechanical manual wind movement, also found branded under Cortina and Kurth, celebrated for its elegant rectangular architecture and long-lasting performance. Collectors value these calibres for their craftsmanship and historical significance, making proper sourcing of original spare parts especially important for restoration.
Key Technical Specifications
Movement Type: Manual winding, mechanical
Shape/Size: Rectangular, approx. 13×15.25mm (5.75×6.75 lignes)
Height: ~3.55mm
Jewels: 17 synthetic jewels
Beat Rate: 19,800 vibrations per hour (vph)
Power Reserve: ~43 hours
Lift Angle: 51°
Era: Common in watches circa 1960
Essential Spare Parts
Mainspring: Critical for movement power, often interchangeable with Certina 13.10.
Balance Assembly: Includes the balance wheel, staff, hairspring, and regulator.
Barrel and Train Wheels: Barrel, center, third, and fourth wheels for gear transmission.
Pallet Fork/Escape Wheel: Key for escapement precision.
Jewels: Synthetic replacements to reduce wear and friction.
Stem/Crown/Setting Mechanism: Vital for setting and winding the movement.
Hands and Dial Feet: Vintage-style hands and compatible dial feet for period authenticity.
Plates, Bridges, Screws: Provide structural support and hold the movement together.
Complete Movements: Sometimes sourced as NOS (New Old Stock) or serviced units for restoration.
Tips for Maintenance and Sourcing
Always confirm the calibre marking “13-20” before ordering parts.
Seek out NOS or donor movements for ensured fit and original quality.
Handle escapement and winding components with extra care—these are delicate and crucial.
Source parts from recognized vintage and Certina specialist suppliers.
Use vintage-correct lubrication standards—do not over-oil small components.
Importance of Genuine Spare Parts
Ensures accuracy, reliability, and longevity for your Certina 13-20.
Maintains historical authenticity and collector value.
Supports professional, proper restoration for lasting use.
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
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