Oris Caliber 645 Watch Movement spare parts
Oris Caliber 645 Watch Movement Spare Parts
The Oris Caliber 645 is a Swiss automatic mechanical watch movement associated with Oris watches from around 1970. It is part of the historical Oris 600-series movement family and is notable for its automatic winding mechanism, date display and traditional Swiss mechanical construction.
The Caliber 645 is an important movement for vintage watch enthusiasts and hobbyist watchmakers interested in restoring and maintaining classic Oris wristwatches. It features a conventional mechanical gear train, balance assembly and automatic winding system.
Oris Caliber 645
– Swiss-made automatic mechanical movement.
– Automatic rotor winding mechanism.
– Central hours, minutes and seconds.
– Date display.
– KIF shock protection.
– Available in 21- and 25-jewel versions.
– Traditional mechanical construction.
– Approximately 45-hour power reserve.
Technical Specifications
Specification Details
Brand Oris
Caliber 645
Movement type Automatic
Production period Around 1970
Diameter 27.00 mm
Height Approximately 6.40 mm
Jewels 21 / 25
Frequency 18,000 vibrations/hour
Beat frequency 2.5 Hz
Power reserve Approximately 45 hours
Shock protection KIF
Functions Hours, minutes, seconds, date
Country Switzerland
Oris Caliber 645 Spare Parts
Finding suitable replacement components is essential when servicing or restoring an Oris Caliber 645 movement. Depending on availability and movement condition, the following spare parts may be required:
– Balance wheel and balance staff
– Mainspring and barrel assembly
– Automatic winding wheels
– Oscillating rotor
– Centre, third and fourth wheels
– Escape wheel and pallet fork
– Jewels and shock protection springs
– Crown wheel and ratchet wheel
– Winding stem and setting components
– Date mechanism components
Restoration and Maintenance
When servicing the Oris 645, watchmakers should inspect the automatic winding mechanism, balance assembly, gear train and lubrication points. Worn pivots, damaged jewels and deteriorated mainsprings can affect timekeeping and reliability.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
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