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The Omega 2500D Movement Co-Axial Wheel (7222500D3004019) is a genuine Swiss-made component for the Omega Caliber 2500D Co‑Axial automatic movement. This co‑axial wheel forms a critical part of the Co‑Axial escapement system, precisely manufactured to ensure correct impulse transfer and reduced friction. It plays a key role in maintaining stable amplitude, long service intervals, and accurate timekeeping.
Genuine Omega part – authentic Swiss-made component for Caliber 2500D
Co‑Axial escapement component – ensures correct impulse transfer and reduced friction
Critical for timekeeping – maintains stable amplitude and accuracy
Extended service intervals – co‑axial technology requires less frequent lubrication
Precision-engineered – manufactured to Omega’s factory specifications
Part Number: 7222500D3004019
Compatible Movement: Omega Caliber 2500D
Movement Diameter: 25.60 mm (11½”’)
Movement Height: 3.60 mm
Jewels: 27
Frequency: 25,200 vph (3.5 Hz)
Power Reserve: 48 hours
Escapement Type: Co‑Axial (3-level)
Origin: Switzerland (Omega factory part)
Condition: Brand new
Service and overhaul of Omega Caliber 2500D movements
Co‑Axial escapement repair – replacing worn or damaged co‑axial wheels
Timekeeping restoration – ensuring stable amplitude and rate
Restoration of Seamaster Planet Ocean, Seamaster 300, De Ville, and other 2500D‑powered models
Suitable for professional watchmakers and authorized service centers
1. Is this a genuine Omega part?
Yes, this is a genuine Omega factory part (reference 7222500D3004019), manufactured in Switzerland. It is listed in the official Omega spare parts list for Caliber 2500D.
2. What is the difference between Caliber 2500D and earlier 2500 versions?
The 2500D is the fourth and final evolution of the 2500 family. It features a 3‑level Co‑Axial escapement and other improvements over earlier versions (A, B, C). The co‑axial wheel reference 7222500D3004019 is specific to the 2500D version.
3. What is the function of the co‑axial wheel?
The co‑axial wheel is part of the Co‑Axial escapement system – a revolutionary technology developed by Dr. George Daniels and adopted by Omega. It transfers impulses from the escape wheel to the pallet fork with reduced friction, improving long‑term accuracy and extending service intervals compared to traditional lever escapements.
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