$95.00
You Saved
The Omega 8500 Movement Setting Lever Jumper (7228500A51091) is a genuine Swiss-made component for the Omega Caliber 8500 Co-Axial automatic movement. This combined setting lever jumper is a critical part of the keyless works, working with the setting lever to define the distinct positions of the winding stem (positions I, II, and III) . It is a recognized service part in the official Omega 8500 spare parts list and is typically replaced during professional servicing when wear or irregular crown operation is detected .
Genuine Omega part – authentic Swiss-made component for Caliber 8500A, 8500B, and 8500G versions
Keyless works component – works with the setting lever to define stem positions
Ensures smooth crown operation – provides precise detent feel for positions I, II, and III
Precision-engineered – manufactured to Omega’s factory specifications
Direct replacement – designed for professional servicing and restoration
Part Number: 7228500A51091
Compatible Movement: Omega Caliber 8500A, 8500B, 8500G
Movement Diameter: 29.00 mm (12¾”’)
Movement Height: 5.5 mm
Jewels: 39
Frequency: 25,200 vph (3.5 Hz)
Power Reserve: 60 hours (two series-coupled barrels)
Origin: Switzerland (Omega factory part)
Condition: Brand new
Service and overhaul of Omega Caliber 8500A/B/G movements
Keyless works repair – replacing worn or damaged setting lever jumpers
Restoration of De Ville Hour Vision, Seamaster Aqua Terra, and other 8500-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 7228500A51091), manufactured in Switzerland. It is listed in the official Omega 8500 spare parts list under “Setting lever jumper” and is not an aftermarket component .
2. Which movement versions is this setting lever jumper compatible with?
This setting lever jumper is listed for Omega Caliber 8500A, 8500B, and 8500G versions . Please verify your movement version before ordering.
3. What is the function of the setting lever jumper?
The setting lever jumper is part of the keyless works that works with the setting lever to define the correct positions (I, II, III) of the winding stem . It provides the detent feel and resistance when pulling or pushing the crown between positions .
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.
