Certina 25-021 Watch Spare Parts: Comprehensive Overview for Collectors and Watchmakers
The Certina 25-021 is a Swiss manual winding mechanical movement based on the ETA 2752 calibre. It is prized for its precision, durability, and date complication, making it a popular choice among vintage watch collectors and professionals restoring Certina timepieces.
Key Technical Specifications
Movement Type: Manual winding mechanical
Calibre: Certina 25-021
Base Movement: ETA 2752
Size: 11.5 lignes (approx. 25.6 mm diameter)
Height: Around 4.2 mm
Jewels: 17 synthetic jewels
Beat Rate: 21,600 vibrations per hour (vph)
Power Reserve: Approximately 43 hours
Functions: Sweep seconds, quickset date
Common Spare Parts
Mainspring: Vital for power delivery; correct sizing ensures smooth operation.
Balance Assembly: Includes balance wheel, hairspring, staff, and regulator for optimal timekeeping.
Escapement Components: Escape wheel and pallet fork regulate the movement’s precision.
Gear Train Wheels: Center, third, and fourth wheels facilitate efficient power transmission.
Date Mechanism Parts: Date disc, jumpers, intermediate wheels ensure accurate and reliable date changes.
Setting and Winding Components: Stem, crown, clutch wheel, setting lever, and springs facilitate manual winding and time-setting.
Plates, Bridges & Screws: Provide mechanical stability and hold components securely.
Jewels: Synthetic rubies reduce friction and increase durability.
Hands & Dial Components: Authentic vintage-style replacements retain the watch’s originality.
Maintenance and Sourcing Tips
Always verify the calibre “25-021” marking before ordering parts for guaranteed compatibility.
Use New Old Stock (NOS) or trusted donor parts for authentic restoration results.
Handle delicate escapement and gear train components carefully during servicing.
Use lubricants designed for vintage manual winding Swiss movements to maintain performance.
Specialist suppliers and vintage watch dealers stock a wide variety of spare parts for 25-021 calibre.
Importance of Genuine Spare Parts
Ensures accuracy, longevity, and reliable performance.
Preserves the collector’s value and historical authenticity of vintage Certina watches.
Supports professional and lasting restoration efforts.
Using genuine parts ensures your Certina 25-021 continues to perform with classic Swiss precision and craftsmanship.
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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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