Certina 17-351 Watch Spare Parts: Comprehensive Guide for Collectors and Watchmakers
The Certina 17-351 is a highly regarded automatic mechanical watch movement widely used in the 1970s. Known for its precision, durability, and efficient power reserve, this calibre is a favorite among vintage watch collectors and professionals. Its 27-jewel design and automatic winding with date function make it a sophisticated yet robust movement.
Key Technical Specifications
Calibre: Certina 17-351
Movement Type: Automatic mechanical
Size: 7.75 lignes (17.2 mm diameter)
Height: Approximately 4.9 mm
Jewels: 27 synthetic jewels
Beat Rate: 21,600 vibrations per hour (vph)
Power Reserve: Around 50 hours
Functions: Sweep seconds, date (quick set by time change from 20:15 to 24:00), hacking/balance stop
Common Spare Parts
Mainspring: Essential for reliable power delivery (sizes approx. 1.40 x 0.08 x 9.0 mm).
Balance Assembly: Complete balance wheels, staff, and bridge for accurate timing.
Oscillating Weight & Axle: Key to the automatic winding mechanism.
Date Components: Date disc, jumper, and springs for precise calendar functionality.
Gear Train Components: Including fourth wheel, center wheel, minute and third wheels that power the movement.
Escape Wheel & Pallet Fork: Core components for escapement performance.
Setting and Winding Parts: Stem (tap 8), crown, clutch lever, winding pinion, and set lever.
Structural Parts: Plates, bridges, screws, and jewel settings for stability and smooth operation.
Hands and Dial Components: Vintage-style compatible parts for authenticity.
Maintenance and Sourcing Tips
Verify “17-351” calibre marking before ordering to ensure part accuracy.
Prefer New Old Stock (NOS) or trusted donor parts for durability.
Handle escapement and date mechanism delicately during servicing.
Use lubricants designed for vintage automatic movements to avoid damage.
Reputable vintage watch part dealers stock various components for Certina 17-351.
Why Genuine Parts Matter
Ensures long-lasting precision and reliable functionality.
Maintains the vintage value and historical authenticity of the timepiece.
Supports professional restoration and sustained watch performance.
Using authentic spare parts keeps your Certina 17-351 movement running true to its Swiss horological heritage.
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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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