Certina 25-661 Watch Spare Parts: Detailed Guide for Collectors and Watchmakers
The Certina 25-661 is a reliable Swiss manual winding mechanical movement produced between 1960 and 1975. This calibre features a date function that is set by advancing time between 11 PM and midnight. It includes Incabloc shock protection and an Adjustable Stud Holder for enhanced durability. Key attributes include a sweep seconds function, 17 jewels, and a beat rate of 19,800 vibrations per hour, with a power reserve of approximately 48 hours.
Key Technical Specifications
Movement Type: Manual winding mechanical
Calibre: Certina 25-661
Size: 11.5 lignes (approximately 26 mm diameter)
Height: About 4.55 mm
Jewels: 17 synthetic jewels
Beat Rate: 19,800 vibrations per hour (vph)
Power Reserve: Approximately 48 hours
Functions: Sweep seconds, date setting by time adjustment, Incabloc shock protection
Common Spare Parts
Mainspring: Essential for power consistency and longevity; precise sizing required.
Balance Assembly: Including balance wheel, hairspring, staff, and regulator for precision timekeeping.
Escapement Components: Escape wheel and pallet fork for accurate regulation.
Gear Train Wheels: Center, third, and fourth wheels transmit power efficiently.
Date Mechanism: Date disc, date change wheels, and jumpers facilitating date functionality.
Setting and Winding Parts: Stem, crown, clutch wheel, setting lever, and springs enabling smooth manual winding and setting.
Plates, Bridges & Screws: Provide structural stability and component support.
Jewels: Synthetic rubies to reduce friction and wear.
Hands and Dial Components: Vintage-style authentic replacements maintaining original aesthetics.
Maintenance and Sourcing Tips
Confirm the calibre “25-661” marking to ensure correct spare parts compatibility.
Use New Old Stock (NOS) or trusted donor parts for authentic and reliable restoration.
Handle delicate components, especially escapement and date parts, with care during repairs.
Apply lubricants designed for vintage manual wind Swiss mechanical movements.
Specialist dealers and online platforms stock various parts for the 25-661 calibre.
Importance of Genuine Spare Parts
Maintains accuracy, longevity, and smooth operation.
Preserves the watch’s historical integrity and collector value.
Supports professional restorations delivering lasting quality.
Using genuine parts helps your Certina 25-661 retain classic Swiss craftsmanship and reliability.
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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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