--- description: Genuine Omega 8500/8601 silicon balance wheels. Swiss OEM parts, anti‑magnetic, restore chronometer accuracy. Exchange may apply. title: Omega 8500 Silicon Balance Wheel 7228900A4005118 - Sofly image: https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelB.jpeg --- [Skip to content](#content) - [Home](https://www.soflypart.com) - - [Products](https://www.soflypart.com/shop/) - - [Watch Parts](https://www.soflypart.com/product-category/watch-parts/) - - [Genuine Omega Parts](https://www.soflypart.com/product-category/watch-parts/genuine-omega-parts/) - - **Omega 8500 Silicon Balance Wheel 7228900A4005118** [![Omega 8500 Silicon Balance Wheel](https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelB.jpeg)](https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelB.jpeg) [![Omega 8500 Silicon Balance Wheel 7228900A4005118 - Image 2](https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelA.jpeg)](https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelA.jpeg) [![Omega 8500 Silicon Balance Wheel 7228900A4005118 - Image 3](https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheel.jpeg)](https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheel.jpeg) [![Omega 8500 Silicon Balance Wheel 7228900A4005118 - Image 4](https://www.soflypart.com/wp-content/uploads/2023/07/8500-Balance-wheelC.jpeg)](https://www.soflypart.com/wp-content/uploads/2023/07/8500-Balance-wheelC.jpeg) # Omega 8500 Silicon Balance Wheel 7228900A4005118 $510.00 – $690.00Price range: $510.00 through $690.00 You Saved | Brand | Choose an option Omega | | --- | --- | | Data | Choose an option Original Packing Without PackingClear | ### Discount | Quantity | Discount (%) | Price | | --- | --- | --- | | 1 - 2 | — | $690.00 | | 3 - 4 | 5% | $655.50 | | 5+ | 7% | $641.70 | ### Discount | Quantity | Discount (%) | Price | | --- | --- | --- | | 1 - 2 | — | $510.00 | | 3 - 4 | 5% | $484.50 | | 5+ | 7% | $474.30 | ### Discount | Quantity | Discount (%) | Price | | --- | --- | --- | | 1 - 2 | — | $690.00 | | 3 - 4 | 5% | $655.50 | | 5+ | 7% | $641.70 | Omega 8500 Silicon Balance Wheel 7228900A4005118 quantity Add to cart x [Checkout](https://www.soflypart.com/checkout/) - Covers 99% of Repair Needs - Wholesale Discounts - Fast Global Shipping - 24/7 Customer Support ## Product Description Genuine Omega silicon balance wheels for Calibre 8500 (part 7228900A4005118) and Calibre 8601 (part 7228601A4005119). Swiss‑made OEM components, delivering exceptional anti‑magnetic performance and long‑term stability. Aftermarket replacement for damaged original balance wheels. ## Features & Function - Genuine Omega OEM – 100% authentic, Swiss made. - Silicon (Si14) technology – anti‑magnetic (>15,000 gauss), lightweight, wear‑resistant. - Optimised for Co‑Axial escapement – ensures high precision and stable amplitude. - Drop‑in replacement – restores original chronometer accuracy. - Exchange required for some models – check with supplier. ## Specifications | Parameter | Value | | --- | --- | | Part numbers | 7228900A4005118 (8500), 7228601A4005119 (8601) | | Compatibility | Omega Calibre 8500, 8601 (and related families) | | Material | Silicon (Si14) | | Anti‑magnetic | >15,000 gauss | | Origin | Swiss Made | | Type | Genuine OEM | ## Applications - Replace broken or damaged silicon balance wheels in Omega 8500/8600/8601 family movements. - Suitable for Seamaster Aqua Terra, Planet Ocean, De Ville, Constellation models. - Professional watch repair and authorised service centres. ## Frequently Asked Questions **Q1: Are these genuine Omega parts?** Yes, 100% authentic Swiss‑made Omega OEM components. **Q2: What is the difference between 8500 and 8601?** 8601 is the annual calendar variant of 8500; the balance wheels are not interchangeable. Use the correct part number. **Q3: Can a hobbyist install it?** No. Requires full escapement disassembly, timing adjustment, and specialised tools. Must be done by a qualified watchmaker. ## Why Choose SOFLY Watch Parts? - 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 **info@soflypart.com** or WhatsApp **+86 18620212114**.   ##### Our Popular Items [![Cartier Tank 2415 Mineral Crystal](https://www.soflypart.com/wp-content/uploads/2022/04/DSC08929.jpg)](https://www.soflypart.com/product/generic-cartier-tank-wsta0042-4322-sapphire-crystal-18-9mm/) ### [Generic Cartier Tank WSTA0042/4322 Sapphire Crystal 18.9mm](https://www.soflypart.com/product/generic-cartier-tank-wsta0042-4322-sapphire-crystal-18-9mm/) [![Rolex 4130 Mainspring](https://www.soflypart.com/wp-content/uploads/2020/12/DSC05891.jpg.webp)](https://www.soflypart.com/product/generic-rolex-caliber-1220-1225-mainspring/) ### [Generic Rolex Caliber 1220/1225 Mainspring](https://www.soflypart.com/product/generic-rolex-caliber-1220-1225-mainspring/) [![Rolex 4130 Mainspring](https://www.soflypart.com/wp-content/uploads/2020/12/DSC05891.jpg.webp)](https://www.soflypart.com/product/generic-rolex-4030-mainspring/) ### [Generic Rolex 4030 Mainspring](https://www.soflypart.com/product/generic-rolex-4030-mainspring/) [![Rolex 4130 Mainspring](https://www.soflypart.com/wp-content/uploads/2020/12/DSC05891.jpg.webp)](https://www.soflypart.com/product/generic-rolex-2030-2035-mainspring/) ### [Generic Rolex 2030/2035 Mainspring](https://www.soflypart.com/product/generic-rolex-2030-2035-mainspring/) [![](https://www.soflypart.com/wp-content/uploads/2026/08/Cartier-caliber-191-mainspring.jpg)](https://www.soflypart.com/product/cartier-caliber-191-mainspring/) ### [Cartier Caliber 191 Mainspring](https://www.soflypart.com/product/cartier-caliber-191-mainspring/) [![](https://www.soflypart.com/wp-content/uploads/2026/08/ETA-E03.001-4000-Circuit-Block-Electronic-Module.jpg)](https://www.soflypart.com/product/eta-e03-001-4000-circuit-block-electronic-module/) ### [ETA E03.001-4000 Circuit Block Electronic Module](https://www.soflypart.com/product/eta-e03-001-4000-circuit-block-electronic-module/) [![Zenith El Primero 18.0240.4021 Crystal](https://www.soflypart.com/wp-content/uploads/2022/07/DSC09824.jpg)](https://www.soflypart.com/product/generic-zenith-el-primero-chronomaster-02-0310-400-sapphire-crystal-29-85mm/) ### [Generic Zenith El Primero Chronomaster 02.0310.400 Sapphire Crystal 29.85mm](https://www.soflypart.com/product/generic-zenith-el-primero-chronomaster-02-0310-400-sapphire-crystal-29-85mm/) [![Breguet Classique 8067 Sapphire Crystal](https://www.soflypart.com/wp-content/uploads/2022/04/DSC09612.jpg)](https://www.soflypart.com/product/generic-breguet-classique-5920-5907-sapphire-crystal-30-5mm/) ### [Generic Breguet Classique 5920/5907 Sapphire Crystal 30.5mm](https://www.soflypart.com/product/generic-breguet-classique-5920-5907-sapphire-crystal-30-5mm/) [![Hattori VD54/VD53 Circuit Block Electronic Module](https://www.soflypart.com/wp-content/uploads/2024/03/Hattori-VD53-circuit.jpg)](https://www.soflypart.com/product/hattori-vd55-vd57-circuit-block-electronic-module/) ### [Hattori VD55/VD57 Circuit Block Electronic Module](https://www.soflypart.com/product/hattori-vd55-vd57-circuit-block-electronic-module/) [![](https://www.soflypart.com/wp-content/uploads/2026/06/ETA-caliber-2000-1471-stop-pinion.jpg)](https://www.soflypart.com/product/eta-caliber-2000-1471-stop-pinion/) ### [ETA Caliber 2000-1471 Stop Pinion](https://www.soflypart.com/product/eta-caliber-2000-1471-stop-pinion/) - [![Rolex Datejust 116261 Bezel Gasket](https://www.soflypart.com/wp-content/uploads/2024/12/Rolex-116261-bezel-gasket.jpg)](https://www.soflypart.com/product/generic-rolex-datejust-turn-o-graph-116261-bezel-gasket-30-4mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-rolex-datejust-turn-o-graph-116261-bezel-gasket-30-4mm/)Watch Parts [

Generic Rolex Datejust Turn-O-Graph 116261 Bezel Gasket 30.4mm

](https://www.soflypart.com/product/generic-rolex-datejust-turn-o-graph-116261-bezel-gasket-30-4mm/) $8.00 You Saved - [![ETA 251.264-4000 Circuit Block](https://www.soflypart.com/wp-content/uploads/2021/08/DSC07678.jpg)](https://www.soflypart.com/product/eta-251-264-4000-circuit-block-electronic-module/)Quick View [Add to Cart](https://www.soflypart.com/product/eta-251-264-4000-circuit-block-electronic-module/)Watch Parts [

ETA 251.264-4000 Circuit Block Electronic Module

](https://www.soflypart.com/product/eta-251-264-4000-circuit-block-electronic-module/) $60.00 You Saved - [![Omega 8500 Movement Winding Pinion](https://www.soflypart.com/wp-content/uploads/2019/06/8500A31120.jpg.webp)](https://www.soflypart.com/product/omega-8500-movement-winding-pinion-7228500a31120/)Quick View [Add to Cart](https://www.soflypart.com/product/omega-8500-movement-winding-pinion-7228500a31120/)Watch Parts [

Omega 8500 Movement Winding Pinion 7228500A31120

](https://www.soflypart.com/product/omega-8500-movement-winding-pinion-7228500a31120/) $105.00 You Saved - [![MIYOTA/CITIZEN GM00 Date Wheel](https://www.soflypart.com/wp-content/uploads/2019/05/GM00D.jpg.webp)](https://www.soflypart.com/product/miyota-citizen-gm00-movement-date-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/miyota-citizen-gm00-movement-date-wheel/)Watch Movement Parts [

MIYOTA/CITIZEN GM00 Date Wheel

](https://www.soflypart.com/product/miyota-citizen-gm00-movement-date-wheel/) $1.00 You Saved - [![Omega De Ville 4693.71.02 Crystal](https://www.soflypart.com/wp-content/uploads/2023/09/DSC01850.jpg)](https://www.soflypart.com/product/generic-omega-de-ville-4693-71-02-sapphire-crystal-17mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-omega-de-ville-4693-71-02-sapphire-crystal-17mm/)Watch Parts [

Generic Omega De Ville 4693.71.02 Sapphire Crystal 17mm

](https://www.soflypart.com/product/generic-omega-de-ville-4693-71-02-sapphire-crystal-17mm/) $45.00 You Saved - [![Patek Philippe 215 Crown Wheel](https://www.soflypart.com/wp-content/uploads/2021/08/DSC07875.jpg)](https://www.soflypart.com/product/generic-patek-philippe-215-crown-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-patek-philippe-215-crown-wheel/)Watch Parts [

Generic Patek Philippe Caliber 215 Crown Wheel

](https://www.soflypart.com/product/generic-patek-philippe-215-crown-wheel/) $185.00 You Saved - [![Omega Silver Crown 4.5mm](https://www.soflypart.com/wp-content/uploads/2023/06/DSC01344.jpg)](https://www.soflypart.com/product/generic-omega-silver-crown-4-5mm-2/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-omega-silver-crown-4-5mm-2/)Watch Parts [

Generic Omega Silver Crown 4.5mm(A)

](https://www.soflypart.com/product/generic-omega-silver-crown-4-5mm-2/) $20.00 You Saved - [![ISA 8171 Movement 10H Wheel](https://www.soflypart.com/wp-content/uploads/2019/05/817110H.jpg.webp)](https://www.soflypart.com/product/isa-8171-movement-10h-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/isa-8171-movement-10h-wheel/)Watch Movement Parts [

ISA 8171 Movement 10H Wheel

](https://www.soflypart.com/product/isa-8171-movement-10h-wheel/) $1.50 You Saved - [![Omega 3303/3313 Movement Ratchet Wheel](https://www.soflypart.com/wp-content/uploads/2019/06/330331022.jpg.webp)](https://www.soflypart.com/product/omega-3303-3313-movement-ratchet-wheel-722330331022/)Quick View [Add to Cart](https://www.soflypart.com/product/omega-3303-3313-movement-ratchet-wheel-722330331022/)Watch Parts [

Omega 3303/3313 Movement Ratchet Wheel 722330331022

](https://www.soflypart.com/product/omega-3303-3313-movement-ratchet-wheel-722330331022/) $80.00 You Saved - [![Patek Philippe 315 Winding Stem](https://www.soflypart.com/wp-content/uploads/2023/01/Patek-315-winding-stem.jpg)](https://www.soflypart.com/product/generic-patek-philippe-315-winding-stem/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-patek-philippe-315-winding-stem/)Watch Parts [

Generic Patek Philippe Calibre 315 Winding Stem

](https://www.soflypart.com/product/generic-patek-philippe-315-winding-stem/) $35.00 You Saved ```json {"@context":"https://schema.org","@graph":[{"@type":["Store","Organization"],"@id":"https://www.soflypart.com/#organization","name":"Sofly","url":"https://www.soflypart.com","logo":{"@type":"ImageObject","@id":"https://www.soflypart.com/#logo","url":"https://www.soflypart.com/wp-content/uploads/2019/12/Sofly-logo.png","contentUrl":"https://www.soflypart.com/wp-content/uploads/2019/12/Sofly-logo.png","caption":"Soflypart","inLanguage":"en-US","width":"180","height":"62"},"openingHours":["Mo,Tu,We,Th,Fr,Sa,Su 09:00-17:00"],"image":{"@id":"https://www.soflypart.com/#logo"}},{"@type":"WebSite","@id":"https://www.soflypart.com/#website","url":"https://www.soflypart.com","name":"Soflypart","publisher":{"@id":"https://www.soflypart.com/#organization"},"inLanguage":"en-US"},{"@type":"ImageObject","@id":"https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelB.jpeg","url":"https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelB.jpeg","width":"580","height":"580","caption":"Omega 8500 Silicon Balance Wheel","inLanguage":"en-US"},{"@type":"BreadcrumbList","@id":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/#breadcrumb","itemListElement":[{"@type":"ListItem","position":"1","item":{"@id":"https://www.soflypart.com","name":"Home"}},{"@type":"ListItem","position":"2","item":{"@id":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/","name":"Omega 8500 Silicon Balance Wheel 7228900A4005118"}}]},{"@type":"WebPage","@id":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/#webpage","url":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/","name":"Omega 8500 Silicon Balance Wheel 7228900A4005118 - Sofly","datePublished":"2023-07-03T19:06:02+08:00","dateModified":"2026-05-29T17:00:18+08:00","isPartOf":{"@id":"https://www.soflypart.com/#website"},"primaryImageOfPage":{"@id":"https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelB.jpeg"},"inLanguage":"en-US","breadcrumb":{"@id":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/#breadcrumb"}},{"@type":"ProductGroup","name":"Omega 8500 Silicon Balance Wheel 7228900A4005118 - Sofly","description":"Genuine Omega 8500/8601 silicon balance wheels. Swiss OEM parts, anti\u2011magnetic, restore chronometer accuracy. Exchange may apply.","sku":"330304016","category":"Watch Parts","mainEntityOfPage":{"@id":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/#webpage"},"image":[{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelB.jpeg","height":"580","width":"580"},{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelA.jpeg","height":"580","width":"580"},{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheel.jpeg","height":"580","width":"580"},{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2023/07/8500-Balance-wheelC.jpeg","height":"580","width":"580"}],"url":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/","productGroupID":"330304016","hasVariant":[{"@type":"Product","sku":"330304016","name":"Omega 8500 Silicon Balance Wheel 7228900A4005118 - Omega, Without Packing","description":"Product Description Genuine Omega silicon balance wheels for Calibre 8500 (part 7228900A4005118) and Calibre 8601 (part 7228601A4005119). Swiss\u2011made OEM components, delivering exceptional anti\u2011magnetic performance and long\u2011term stability. Aftermarket replacement for damaged original balance wheels. Features & Function Genuine Omega OEM \u2013 100% authentic, Swiss made. Silicon (Si14) technology \u2013 anti\u2011magnetic (>15,000 gauss), lightweight, wear\u2011resistant. Optimised for Co\u2011Axial escapement \u2013 ensures high precision and stable amplitude. Drop\u2011in replacement \u2013 restores original chronometer accuracy. Exchange required for some models \u2013 check with supplier. Specifications Parameter Value Part numbers 7228900A4005118 (8500), 7228601A4005119 (8601) Compatibility Omega Calibre 8500, 8601 (and related families) Material Silicon (Si14) Anti\u2011magnetic >15,000 gauss Origin Swiss Made Type Genuine OEM Applications Replace broken or damaged silicon balance wheels in Omega 8500/8600/8601 family movements. Suitable for Seamaster Aqua Terra, Planet Ocean, De Ville, Constellation models. Professional watch repair and authorised service centres. Frequently Asked Questions Q1: Are these genuine Omega parts? Yes, 100% authentic Swiss\u2011made Omega OEM components. Q2: What is the difference between 8500 and 8601? 8601 is the annual calendar variant of 8500; the balance wheels are not interchangeable. Use the correct part number. Q3: Can a hobbyist install it? No. Requires full escapement disassembly, timing adjustment, and specialised tools. Must be done by a qualified watchmaker. Why Choose SOFLY Watch Parts? 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\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.  ","image":"https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelB-150x150.jpeg","offers":{"@type":"Offer","description":"Product Description Genuine Omega silicon balance wheels for Calibre 8500 (part 7228900A4005118) and Calibre 8601 (part 7228601A4005119). Swiss\u2011made OEM components, delivering exceptional anti\u2011magnetic performance and long\u2011term stability. Aftermarket replacement for damaged original balance wheels. Features & Function Genuine Omega OEM \u2013 100% authentic, Swiss made. Silicon (Si14) technology \u2013 anti\u2011magnetic (>15,000 gauss), lightweight, wear\u2011resistant. Optimised for Co\u2011Axial escapement \u2013 ensures high precision and stable amplitude. Drop\u2011in replacement \u2013 restores original chronometer accuracy. Exchange required for some models \u2013 check with supplier. Specifications Parameter Value Part numbers 7228900A4005118 (8500), 7228601A4005119 (8601) Compatibility Omega Calibre 8500, 8601 (and related families) Material Silicon (Si14) Anti\u2011magnetic >15,000 gauss Origin Swiss Made Type Genuine OEM Applications Replace broken or damaged silicon balance wheels in Omega 8500/8600/8601 family movements. Suitable for Seamaster Aqua Terra, Planet Ocean, De Ville, Constellation models. Professional watch repair and authorised service centres. Frequently Asked Questions Q1: Are these genuine Omega parts? Yes, 100% authentic Swiss\u2011made Omega OEM components. Q2: What is the difference between 8500 and 8601? 8601 is the annual calendar variant of 8500; the balance wheels are not interchangeable. Use the correct part number. Q3: Can a hobbyist install it? No. Requires full escapement disassembly, timing adjustment, and specialised tools. Must be done by a qualified watchmaker. Why Choose SOFLY Watch Parts? 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\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.  ","price":"510","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/?attribute_pa_brand=brand-omega&attribute_pa_data=without-packing"}},{"@type":"Product","sku":"330304016","name":"Omega 8500 Silicon Balance Wheel 7228900A4005118 - Omega, Original Packing","description":"Product Description Genuine Omega silicon balance wheels for Calibre 8500 (part 7228900A4005118) and Calibre 8601 (part 7228601A4005119). Swiss\u2011made OEM components, delivering exceptional anti\u2011magnetic performance and long\u2011term stability. Aftermarket replacement for damaged original balance wheels. Features & Function Genuine Omega OEM \u2013 100% authentic, Swiss made. Silicon (Si14) technology \u2013 anti\u2011magnetic (>15,000 gauss), lightweight, wear\u2011resistant. Optimised for Co\u2011Axial escapement \u2013 ensures high precision and stable amplitude. Drop\u2011in replacement \u2013 restores original chronometer accuracy. Exchange required for some models \u2013 check with supplier. Specifications Parameter Value Part numbers 7228900A4005118 (8500), 7228601A4005119 (8601) Compatibility Omega Calibre 8500, 8601 (and related families) Material Silicon (Si14) Anti\u2011magnetic >15,000 gauss Origin Swiss Made Type Genuine OEM Applications Replace broken or damaged silicon balance wheels in Omega 8500/8600/8601 family movements. Suitable for Seamaster Aqua Terra, Planet Ocean, De Ville, Constellation models. Professional watch repair and authorised service centres. Frequently Asked Questions Q1: Are these genuine Omega parts? Yes, 100% authentic Swiss\u2011made Omega OEM components. Q2: What is the difference between 8500 and 8601? 8601 is the annual calendar variant of 8500; the balance wheels are not interchangeable. Use the correct part number. Q3: Can a hobbyist install it? No. Requires full escapement disassembly, timing adjustment, and specialised tools. Must be done by a qualified watchmaker. Why Choose SOFLY Watch Parts? 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\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.  ","image":"https://www.soflypart.com/wp-content/uploads/2023/07/8500-balance-wheelB-150x150.jpeg","offers":{"@type":"Offer","description":"Product Description Genuine Omega silicon balance wheels for Calibre 8500 (part 7228900A4005118) and Calibre 8601 (part 7228601A4005119). Swiss\u2011made OEM components, delivering exceptional anti\u2011magnetic performance and long\u2011term stability. Aftermarket replacement for damaged original balance wheels. Features & Function Genuine Omega OEM \u2013 100% authentic, Swiss made. Silicon (Si14) technology \u2013 anti\u2011magnetic (>15,000 gauss), lightweight, wear\u2011resistant. Optimised for Co\u2011Axial escapement \u2013 ensures high precision and stable amplitude. Drop\u2011in replacement \u2013 restores original chronometer accuracy. Exchange required for some models \u2013 check with supplier. Specifications Parameter Value Part numbers 7228900A4005118 (8500), 7228601A4005119 (8601) Compatibility Omega Calibre 8500, 8601 (and related families) Material Silicon (Si14) Anti\u2011magnetic >15,000 gauss Origin Swiss Made Type Genuine OEM Applications Replace broken or damaged silicon balance wheels in Omega 8500/8600/8601 family movements. Suitable for Seamaster Aqua Terra, Planet Ocean, De Ville, Constellation models. Professional watch repair and authorised service centres. Frequently Asked Questions Q1: Are these genuine Omega parts? Yes, 100% authentic Swiss\u2011made Omega OEM components. Q2: What is the difference between 8500 and 8601? 8601 is the annual calendar variant of 8500; the balance wheels are not interchangeable. Use the correct part number. Q3: Can a hobbyist install it? No. Requires full escapement disassembly, timing adjustment, and specialised tools. Must be done by a qualified watchmaker. Why Choose SOFLY Watch Parts? 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\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.  ","price":"690","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/?attribute_pa_brand=brand-omega&attribute_pa_data=original-packing"}}],"@id":"https://www.soflypart.com/product/omega-8500-silicon-balance-wheel-7228900a4005118/#richSnippet"}]} ```