Oris Caliber 421 Watch Movement spare parts
Oris Caliber 421 Watch Movement Spare Parts
The Oris Caliber 421 is a vintage Swiss mechanical watch movement introduced around 1950. Designed for traditional hand-wound timepieces, this movement features a small seconds display and a pin-lever escapement. It is an interesting calibre for vintage watch collectors, restoration specialists and hobbyist watchmakers.
The Oris 421 was produced in both 7-jewel and 15-jewel versions. When restoring an older Oris watch, identifying the correct version is important because certain internal components differ.
Oris Caliber 421 Spare Parts
Common components required for servicing and restoration include:
– Balance Wheel: Essential for maintaining the movement’s timekeeping accuracy.
– Balance Staff: A critical component that supports the balance wheel and allows it to oscillate correctly.
– Mainspring: Supplies the mechanical energy required to operate the movement.
– Barrel and Barrel Arbor: Transfer stored mainspring power to the gear train.
– Escape Wheel: Controls the release of energy through the escapement.
– Pallet Components: Important parts of the pin-lever escapement mechanism.
– Gear Train: Includes the centre, third and fourth wheels responsible for transmitting power.
– Winding Components: Crown wheel, ratchet wheel, winding pinion and setting mechanism.
– Jewels and Screws: Small but essential components for reliable operation and maintenance.
Technical Specifications
Specification Details
Manufacturer Oris
Calibre 421
Production period Circa 1950
Movement type Mechanical, manual winding
Origin Switzerland
Movement diameter 40.85 mm
Movement height 5.70 mm
Jewels 7 or 15
Frequency 18,000 BPH
Power reserve Approximately 38 hours
Escapement Pin lever
Display Hours, minutes, small seconds
Finding the Correct Replacement Parts
When sourcing Oris Caliber 421 watch movement spare parts, always verify the calibre number and jewel configuration. The 7-jewel and 15-jewel versions have some differences in their components.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
Watch Parts Enquiry
* If you are unable to fill out any of the required information fields, please type “N/A”.
Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
Mobile/WhatsApp: +91- 9841 360 340