$85.00
You Saved
The Omega 2500B Movement Escape Wheel (7222500B30039) is a genuine Swiss-made component for the Omega Caliber 2500B Co‑Axial automatic movement. As a critical part of the 2‑level Co‑Axial escapement system, this escape wheel works with the pallet fork and co‑axial wheel to transmit impulses from the gear train to the balance, enabling stable energy transfer and timekeeping. The 2500B was the second evolution of the 2500 family, retaining the 28,800 vph beat rate of the original A version.
Genuine Omega part – authentic Swiss‑made component for Caliber 2500B
Co‑Axial escapement component – works with pallet fork and co‑axial wheel for impulse transmission
28,800 vph frequency – higher beat rate compared to later C/D versions (25,200 vph) for smoother seconds sweep
Service replacement part – recognized in official Omega parts documentation
Precision‑engineered – manufactured to Omega’s factory specifications
Part Number: 7222500B30039
Compatible Movement: Omega Caliber 2500B
Movement Diameter: 25.60 mm (11½”’)
Movement Height: 3.60 mm
Jewels: 27
Frequency: 28,800 vph (4 Hz) – higher than 2500C/D’s 25,200 vph
Power Reserve: 48 hours
Escapement Type: Co‑Axial (2‑level)
Origin: Switzerland (Omega factory part)
Condition: Brand new
Service and overhaul of Omega Caliber 2500B movements
Co‑Axial escapement repair – replacing worn or damaged escape wheels
Restoration of Seamaster Aqua Terra, De Ville, and other 2500B‑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 7222500B30039), manufactured in Switzerland . It is listed in Omega technical documentation for the Caliber 2500B .
2. What is the difference between 2500B and later 2500C/D versions?
The 2500B uses a 2‑level Co‑Axial escapement with a 28,800 vph beat rate. The 2500C reduced the frequency to 25,200 vph and modified the gear train to address power issues, while the 2500D introduced a 3‑level escapement that fundamentally resolved reliability concerns .
3. Is the 2500B escape wheel compatible with 2500C or 2500D?
No. The 2500B uses its own specific escape wheel (30039). Parts are not interchangeable between versions due to the significant redesigns in C and D, including changes to beat rate, gear train, and escapement geometry .
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
