---
description: Generic Omega Speedmaster '57 331.12.00 sapphire crystal 31mm domed blue AR with grey gasket. Aftermarket replacement.
title: Generic Omega Speedmaster '57 331.12.00 Sapphire Crystal 31mm - Sofly
image: https://www.soflypart.com/wp-content/uploads/2023/09/DSC01979.jpg
---
[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/)
-
- [Omega Crystal](https://www.soflypart.com/product-category/watch-parts/watch-crystals/omega-crystal/)
-
- [Watch Crystals](https://www.soflypart.com/product-category/watch-parts/watch-crystals/)
-
- **Generic Omega Speedmaster ’57 331.12.00 Sapphire Crystal 31mm**
[](https://www.soflypart.com/wp-content/uploads/2023/09/DSC01979.jpg)
# Generic Omega Speedmaster ’57 331.12.00 Sapphire Crystal 31mm
$50.00
You Saved
| Brand | Choose an option Omega- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $50.00 |
| 3 - 4 | 5% | $47.50 |
| 5 - 9 | 7% | $46.50 |
| 10 - 14 | 10% | $45.00 |
| 15+ | 15% | $42.50 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $50.00 |
| 3 - 4 | 5% | $47.50 |
| 5 - 9 | 7% | $46.50 |
| 10 - 14 | 10% | $45.00 |
| 15+ | 15% | $42.50 |
Generic Omega Speedmaster '57 331.12.00 Sapphire Crystal 31mm 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
Generic domed round sapphire crystal for Omega Speedmaster ’57 331.12.00. Diameter 31.0mm, total thickness 1.8mm, step thickness 1.0mm. Blue anti‑reflective coating, includes grey gasket. Aftermarket replacement for damaged original crystals.
## Features & Function
- Domed round with blue AR coating – reduces glare.
- Includes grey gasket – ensures proper sealing.
- Synthetic sapphire – scratch resistant (Mohs 9).
- Drop‑in replacement – no modification needed.
- Affordable alternative to OEM.
## Specifications
| Parameter | Value |
| --- | --- |
| Compatible model | Omega 331.12.00 |
| Diameter | 31.0 mm |
| Total thickness | 1.8 mm |
| Step thickness | 1.0 mm |
| Shape | Domed round |
| Coating | Blue anti‑reflective |
| Gasket | Grey (included) |
| Material | Synthetic sapphire |
| Type | Aftermarket |
## Applications
- Replace scratched, cracked, or damaged original crystals on Omega Speedmaster ’57 331.12.00.
- Professional watch repair and restoration.
## Frequently Asked Questions
**Q1: Genuine Omega part?** No, generic aftermarket.
**Q2: Is the gasket included?** Yes, grey gasket included.
**Q3: Self‑install?** Professional recommended for water resistance.
## 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
[](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/)
[](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/)
[](https://www.soflypart.com/product/generic-rolex-4030-mainspring/)
### [Generic Rolex 4030 Mainspring](https://www.soflypart.com/product/generic-rolex-4030-mainspring/)
[](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/product/cartier-caliber-191-mainspring/)
### [Cartier Caliber 191 Mainspring](https://www.soflypart.com/product/cartier-caliber-191-mainspring/)
[](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/)
[](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/)
[](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/)
[](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/product/eta-caliber-2000-1471-stop-pinion/)
### [ETA Caliber 2000-1471 Stop Pinion](https://www.soflypart.com/product/eta-caliber-2000-1471-stop-pinion/)
- [](https://www.soflypart.com/product/generic-cartier-cougar-17904-sapphire-crystal-25-2mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-cartier-cougar-17904-sapphire-crystal-25-2mm/)Watch Parts [Generic Cartier Cougar 17904 Sapphire Crystal 25.2mm
](https://www.soflypart.com/product/generic-cartier-cougar-17904-sapphire-crystal-25-2mm/) $45.00
You Saved
- [](https://www.soflypart.com/product/generic-omega-constellation-123-20-35-20-02-rose-gold-crown-6-0mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-omega-constellation-123-20-35-20-02-rose-gold-crown-6-0mm/)Watch Parts [Generic Omega Constellation 123.20.35.20.02 Rose Gold Crown 6.0mm 069BG42213
](https://www.soflypart.com/product/generic-omega-constellation-123-20-35-20-02-rose-gold-crown-6-0mm/) $25.00
You Saved
- [](https://www.soflypart.com/product/generic-breitling-steel-tube-4-0mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-breitling-steel-tube-4-0mm/)Watch Parts [Generic Breitling Steel Tube 4.0MM
](https://www.soflypart.com/product/generic-breitling-steel-tube-4-0mm/) $12.00
You Saved
- [](https://www.soflypart.com/product/generic-rolex-4130-205-sliding-pinion/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-rolex-4130-205-sliding-pinion/)Watch Parts [Generic Rolex 4130-205 Sliding Pinion
](https://www.soflypart.com/product/generic-rolex-4130-205-sliding-pinion/) $33.00
You Saved
- [](https://www.soflypart.com/product/miyota-citizen-8200-movement-hour-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/miyota-citizen-8200-movement-hour-wheel/)Watch Movement Parts [MIYOTA/CITIZEN 8200 Hour Wheel
](https://www.soflypart.com/product/miyota-citizen-8200-movement-hour-wheel/) $1.00
You Saved
- [](https://www.soflypart.com/product/generic-tag-heuer-grand-carrera-cav511b-case-back-sapphire-crystal-22-9mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-tag-heuer-grand-carrera-cav511b-case-back-sapphire-crystal-22-9mm/)Watch Parts [Generic TAG Heuer Grand Carrera CAV511B Case Back Sapphire Crystal 22.9mm
](https://www.soflypart.com/product/generic-tag-heuer-grand-carrera-cav511b-case-back-sapphire-crystal-22-9mm/) $65.00
You Saved
- [](https://www.soflypart.com/product/generic-cartier-tank-francaise-2531-sapphire-crystal-21-95mm-2/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-cartier-tank-francaise-2531-sapphire-crystal-21-95mm-2/)Watch Parts [Generic Cartier Tank Francaise 2531 Sapphire Crystal 21.95mm
](https://www.soflypart.com/product/generic-cartier-tank-francaise-2531-sapphire-crystal-21-95mm-2/) $45.00
You Saved
- [](https://www.soflypart.com/product/generic-cartier-ronde-solo-w6701005-sapphire-crystal-29-5mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-cartier-ronde-solo-w6701005-sapphire-crystal-29-5mm/)Watch Parts [Generic Cartier Ronde Solo W6701005 Sapphire Crystal 29.5mm
](https://www.soflypart.com/product/generic-cartier-ronde-solo-w6701005-sapphire-crystal-29-5mm/) $45.00
You Saved
- [](https://www.soflypart.com/product/generic-omega-de-ville-silver-crown-4-8mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-omega-de-ville-silver-crown-4-8mm/)Watch Parts [Generic Omega De Ville Silver Crown 4.8mm 069ST42110
](https://www.soflypart.com/product/generic-omega-de-ville-silver-crown-4-8mm/) $20.00
You Saved
- [](https://www.soflypart.com/product/generic-omega-push-gold-crown-5-44mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-omega-push-gold-crown-5-44mm/)Watch Parts [Generic Omega Push Gold Crown 5.44mm 069SX43286
](https://www.soflypart.com/product/generic-omega-push-gold-crown-5-44mm/) $25.00
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/2023/09/DSC01979.jpg","url":"https://www.soflypart.com/wp-content/uploads/2023/09/DSC01979.jpg","width":"580","height":"580","caption":"Omega 57 331.12.00 Crystal","inLanguage":"en-US"},{"@type":"BreadcrumbList","@id":"https://www.soflypart.com/product/generic-omega-speedmaster-57-331-12-00-sapphire-crystal-31mm/#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/generic-omega-speedmaster-57-331-12-00-sapphire-crystal-31mm/","name":"Generic Omega Speedmaster ’57 331.12.00 Sapphire Crystal 31mm"}}]},{"@type":"WebPage","@id":"https://www.soflypart.com/product/generic-omega-speedmaster-57-331-12-00-sapphire-crystal-31mm/#webpage","url":"https://www.soflypart.com/product/generic-omega-speedmaster-57-331-12-00-sapphire-crystal-31mm/","name":"Generic Omega Speedmaster '57 331.12.00 Sapphire Crystal 31mm - Sofly","datePublished":"2023-09-17T00:12:49+08:00","dateModified":"2026-05-28T11:10:45+08:00","isPartOf":{"@id":"https://www.soflypart.com/#website"},"primaryImageOfPage":{"@id":"https://www.soflypart.com/wp-content/uploads/2023/09/DSC01979.jpg"},"inLanguage":"en-US","breadcrumb":{"@id":"https://www.soflypart.com/product/generic-omega-speedmaster-57-331-12-00-sapphire-crystal-31mm/#breadcrumb"}},{"@type":"ProductGroup","name":"Generic Omega Speedmaster '57 331.12.00 Sapphire Crystal 31mm - Sofly","description":"Generic Omega Speedmaster '57 331.12.00 sapphire crystal 31mm domed blue AR with grey gasket. Aftermarket replacement.","sku":"330304158","category":"Watch Parts","mainEntityOfPage":{"@id":"https://www.soflypart.com/product/generic-omega-speedmaster-57-331-12-00-sapphire-crystal-31mm/#webpage"},"image":[{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2023/09/DSC01979.jpg","height":"580","width":"580"}],"url":"https://www.soflypart.com/product/generic-omega-speedmaster-57-331-12-00-sapphire-crystal-31mm/","productGroupID":"330304158","hasVariant":[{"@type":"Product","sku":"330304158","name":"Generic Omega Speedmaster '57 331.12.00 Sapphire Crystal 31mm - Omega","description":"Product Description Generic domed round sapphire crystal for Omega Speedmaster '57 331.12.00. Diameter 31.0mm, total thickness 1.8mm, step thickness 1.0mm. Blue anti\u2011reflective coating, includes grey gasket. Aftermarket replacement for damaged original crystals. Features & Function Domed round with blue AR coating \u2013 reduces glare. Includes grey gasket \u2013 ensures proper sealing. Synthetic sapphire \u2013 scratch resistant (Mohs 9). Drop\u2011in replacement \u2013 no modification needed. Affordable alternative to OEM. Specifications Parameter Value Compatible model Omega 331.12.00 Diameter 31.0 mm Total thickness 1.8 mm Step thickness 1.0 mm Shape Domed round Coating Blue anti\u2011reflective Gasket Grey (included) Material Synthetic sapphire Type Aftermarket Applications Replace scratched, cracked, or damaged original crystals on Omega Speedmaster '57 331.12.00. Professional watch repair and restoration. Frequently Asked Questions Q1: Genuine Omega part?\u00a0No, generic aftermarket. Q2: Is the gasket included?\u00a0Yes, grey gasket included. Q3: Self\u2011install?\u00a0Professional recommended for water resistance. 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/2023/09/DSC01979-150x150.jpg","offers":{"@type":"Offer","description":"Product Description Generic domed round sapphire crystal for Omega Speedmaster '57 331.12.00. Diameter 31.0mm, total thickness 1.8mm, step thickness 1.0mm. Blue anti\u2011reflective coating, includes grey gasket. Aftermarket replacement for damaged original crystals. Features & Function Domed round with blue AR coating \u2013 reduces glare. Includes grey gasket \u2013 ensures proper sealing. Synthetic sapphire \u2013 scratch resistant (Mohs 9). Drop\u2011in replacement \u2013 no modification needed. Affordable alternative to OEM. Specifications Parameter Value Compatible model Omega 331.12.00 Diameter 31.0 mm Total thickness 1.8 mm Step thickness 1.0 mm Shape Domed round Coating Blue anti\u2011reflective Gasket Grey (included) Material Synthetic sapphire Type Aftermarket Applications Replace scratched, cracked, or damaged original crystals on Omega Speedmaster '57 331.12.00. Professional watch repair and restoration. Frequently Asked Questions Q1: Genuine Omega part?\u00a0No, generic aftermarket. Q2: Is the gasket included?\u00a0Yes, grey gasket included. Q3: Self\u2011install?\u00a0Professional recommended for water resistance. 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":"50","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/generic-omega-speedmaster-57-331-12-00-sapphire-crystal-31mm/?attribute_pa_brand=brand-omega"}}],"@id":"https://www.soflypart.com/product/generic-omega-speedmaster-57-331-12-00-sapphire-crystal-31mm/#richSnippet"}]}
```