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The Omega 2500C Movement Second Wheel (7222500C3002702) is a genuine Swiss-made component for the Omega Caliber 2500C Co‑Axial automatic movement. As part of the wheel train, the second wheel transmits power from the barrel system to the Co‑Axial escapement. The 2500C represents a major redesign from earlier versions, with the beat rate reduced from 28,800 to 25,200 vph and the gear train modified (second wheel teeth increased from 96 to 105) to improve reliability and torque stability.
Genuine Omega part – authentic Swiss-made component for Caliber 2500C
Wheel train component – transmits power from the barrel to the escapement
Modified gear train – redesigned for the 25,200 vph (3.5 Hz) frequency with 105 teeth on second wheel
Service replacement part – recognized in official Omega technical documentation
Precision-engineered – manufactured to Omega’s factory specifications
Part Number: 7222500C3002702
Compatible Movement: Omega Caliber 2500C
Movement Diameter: 25.60 mm (11½”’)
Movement Height: 3.60 mm
Jewels: 27
Frequency: 25,200 vph (3.5 Hz) – reduced from 28,800 vph
Power Reserve: 48 hours
Second Wheel Teeth: 105 (increased from 96 in earlier versions)
Escapement Type: Co‑Axial (2‑level)
Origin: Switzerland (Omega factory part)
Condition: Brand new
Service and overhaul of Omega Caliber 2500C movements
Wheel train repair – replacing worn or damaged second wheels
Timekeeping restoration – ensuring stable power transmission to the escapement
Restoration of Seamaster Planet Ocean, Seamaster 300, and other 2500C‑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 7222500C3002702), manufactured in Switzerland. It is designed specifically for the Caliber 2500C version.
2. What is the difference between 2500C and earlier versions?
The 2500C represents a major redesign from the earlier 2500A and 2500B versions. Key changes include: frequency reduced from 28,800 to 25,200 vph, second wheel teeth increased from 96 to 105, intermediate wheel changed from 8 to 10 leaves, lift angle increased from 30° to 38°, and power reserve extended from 44 to 48 hours.
3. Is the 2500C second wheel compatible with the 2500D?
The 2500C uses a 2‑level Co‑Axial escapement, while the 2500D uses a 3‑level design with significant geometry changes. Parts such as the second wheel may have different specifications. Compatibility is not guaranteed – please verify with official Omega documentation.
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