Certina 28-161 Watch Spare Parts: Key Facts for Collectors and Watchmakers
The Certina 28-161 is a Swiss manual winding movement widely used in vintage Certina watches from the mid-1960s. Known for its sturdy construction and dependability, it features sweep seconds, date, and a substantial 46-hour power reserve. It has a diameter of 28.0mm (12.5 lignes) and a height of 4.9mm, with 17 synthetic jewels and a frequency of 18,000 vph.
Key Technical Specifications
Movement Type: Manual winding mechanical
Calibre: Certina 28-161
Diameter: 28.0 mm (12.5 lignes)
Height: 4.9 mm
Jewels: 17 synthetic jewels
Beat Rate: 18,000 vibrations per hour (vph)
Power Reserve: 46 hours
Functions: Sweep seconds, date
Common Spare Parts
Mainspring: Properly dimensioned for stable power—essential for maintaining consistent running.
Balance Assembly: Comprising balance wheel, hairspring, staff, and regulator for timing precision.
Gear Train: Barrel arbor, barrel with minute wheel, center/third/fourth wheels for smooth energy transfer.
Setting and Winding Parts: Stem, crown, clutch wheel, setting lever, ratchet wheel, winding pinion for winding and setting operation.
Escapement: Escape wheel, pallet fork for beat regulation.
Date Mechanism: Date jumper (often interchangeable with 28-151), date disc, jumper spring, yokes.
Plates, Bridges & Screws: Vital for structural rigidity and assembly.
Jewels: Reduce friction—extend service life.
Hands & Dial Parts: Period-authentic replacements retain original vintage appearance.
Maintenance and Sourcing Tips
Confirm the calibre “28-161” inscription on the movement before sourcing spares for compatibility.
Opt for New Old Stock (NOS) or original donor parts for best restoration results.
Handle escapement and calendar components with extreme care during repair/servicing.
Use lubricants designed for vintage Swiss calibres.
Reputable vintage watch suppliers and online retailers offer a range of Certina 28-161 spare parts.
Importance of Genuine Spare Parts
Preserves accuracy, dependability, and longevity.
Supports the watch’s historical and collector value.
Ensures professional-quality restoration and authentic function.
With genuine parts, your Certina 28-161 continues to exemplify Swiss watchmaking reliability and value.
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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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