$120.00
You Saved
The Omega 8508 Movement Barrel One Complete (7228508G20010) is a genuine Swiss-made component designed for the Omega Caliber 8508 Co-Axial automatic movement. This complete barrel assembly includes the mainspring, barrel arbor, and barrel drum, serving as one of the two series-coupled barrels that provide the movement’s extended 60-hour power reserve. It is typically replaced during professional servicing when wear or reduced power reserve is detected.
Genuine Omega part – authentic Swiss-made component for Caliber 8508
Complete barrel assembly – includes mainspring, arbor, and barrel drum
Series-coupled barrel system – one of two barrels providing extended 60-hour power reserve
Ready-to-install – simplifies servicing, no separate mainspring fitting required
Precision-engineered – manufactured to Omega’s factory specifications
Part Number: 7228508G20010
Compatible Movement: Omega Caliber 8508 (Co-Axial automatic, anti-magnetic)
Movement Diameter: 29.00 mm (12¾”’)
Movement Height: 5.5 mm
Jewels: 39
Frequency: 25,200 vph (3.5 Hz)
Power Reserve: 60 hours (from two series-coupled barrels)
Origin: Switzerland (Omega factory part)
Condition: Brand new
Service and overhaul of Omega Caliber 8508 movements
Power reserve restoration – replacing worn or weakened mainsprings
Barrel system repair – replacing damaged or worn barrel assemblies
Restoration of Seamaster Aqua Terra “Bumblebee” 15,000 Gauss and other 8508-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 7228508G20010), manufactured in Switzerland. It is not an aftermarket or generic component.
2. What is the difference between Barrel One and Barrel Two for Caliber 8508?
Barrel One (G20010) and Barrel Two (G20011) are the two series-coupled barrels used in Caliber 8508. While both are complete barrel assemblies containing mainspring, arbor, and drum, they have different dimensions and are not interchangeable. Always verify your specific position and part number.
3. What is the function of the two series-coupled barrels?
The Caliber 8508 uses two barrels connected in series, providing a 60-hour power reserve while maintaining stable torque delivery throughout the power reserve. This ensures consistent amplitude and accuracy over time.
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.
