---
description: Generic JLC Master Chronograph 1752421 sapphire crystal, 35mm domed blue AR. Aftermarket replacement, scratch resistant.
title: Generic JLC Jaeger-LeCoultre Master Chronograph Q1752421 Sapphire Crystal 35mm - Sofly
image: https://www.soflypart.com/wp-content/uploads/2022/11/DSC00744.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/)
-
- [Jaeger-LeCoultre Crystal](https://www.soflypart.com/product-category/watch-parts/watch-crystals/jaeger-lecoultre-crystal/)
-
- [Watch Crystals](https://www.soflypart.com/product-category/watch-parts/watch-crystals/)
-
- **Generic JLC Jaeger-LeCoultre Master Chronograph Q1752421 Sapphire Crystal 35mm**
[](https://www.soflypart.com/wp-content/uploads/2022/11/DSC00744.jpg)
# Generic JLC Jaeger-LeCoultre Master Chronograph Q1752421 Sapphire Crystal 35mm
$80.00
You Saved
| Brand | Choose an option Jaeger-LeCoultre- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $80.00 |
| 3 - 4 | 5% | $76.00 |
| 5 - 9 | 7% | $74.40 |
| 10 - 14 | 10% | $72.00 |
| 15+ | 15% | $68.00 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $80.00 |
| 3 - 4 | 5% | $76.00 |
| 5 - 9 | 7% | $74.40 |
| 10 - 14 | 10% | $72.00 |
| 15+ | 15% | $68.00 |
Generic JLC Jaeger-LeCoultre Master Chronograph Q1752421 Sapphire Crystal 35mm 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 JLC Master Chronograph Q1752421, also fits Q153847N. Diameter 35.0mm, total thickness 3.4mm, step thickness 2.0mm, blue AR coating. Aftermarket replacement for damaged or scratched original crystals.
## Features & Function
- Domed round with blue AR coating – reduces glare.
- Synthetic sapphire – scratch resistant (Mohs 9).
- High optical clarity – maintains dial readability.
- Drop‑in replacement – no case modification.
## Specifications
| Parameter | Value |
| --- | --- |
| Compatible models | Q1752421, Q153847N |
| Diameter | 35.0 mm |
| Total thickness | 3.4 mm |
| Step thickness | 2.0 mm |
| Coating | Blue anti‑reflective |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
## Applications
- Replace scratched/cracked original crystal.
- Professional watch repair and restoration.
## Frequently Asked Questions
**Q1: Genuine JLC part?** No, generic aftermarket.
**Q2: Does it include a gasket?** No, use original or purchase separately.
**Q3: Quality reliable?** Yes, from reputable suppliers.
## 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/eta-2824-2-2834-2-2836-2-movement-setting-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/eta-2824-2-2834-2-2836-2-movement-setting-wheel/)Watch Movement Parts [ETA 2824/2834/2836-450 Setting Wheel
](https://www.soflypart.com/product/eta-2824-2-2834-2-2836-2-movement-setting-wheel/) $4.00
You Saved
- [](https://www.soflypart.com/product/generic-iwc-iw3574-portofino-automatic-sapphire-crystal-28mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-iwc-iw3574-portofino-automatic-sapphire-crystal-28mm/)Watch Parts [Generic IWC Portofino Automatic IW3574 Sapphire Crystal 28mm
](https://www.soflypart.com/product/generic-iwc-iw3574-portofino-automatic-sapphire-crystal-28mm/) $65.00
You Saved
- [](https://www.soflypart.com/product/generic-rado-diastar-160-0381-3-blue-sapphire-crystal-28-3mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-rado-diastar-160-0381-3-blue-sapphire-crystal-28-3mm/)Watch Parts [Generic Rado Diastar 160.0381.3 Blue Sapphire Crystal 28.3mm
](https://www.soflypart.com/product/generic-rado-diastar-160-0381-3-blue-sapphire-crystal-28-3mm/) $80.00
You Saved
- [](https://www.soflypart.com/product/generic-omega-seamaster-aqua-terra-2373-70-00-sapphire-crystal-23-5mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-omega-seamaster-aqua-terra-2373-70-00-sapphire-crystal-23-5mm/)Watch Parts [Generic Omega Seamaster Aqua Terra 2373.70.00 Sapphire Crystal 23.5mm
](https://www.soflypart.com/product/generic-omega-seamaster-aqua-terra-2373-70-00-sapphire-crystal-23-5mm/) $35.00
You Saved
- [](https://www.soflypart.com/product/rolex-2135-205-sliding-pinion-clutch-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/rolex-2135-205-sliding-pinion-clutch-wheel/)Watch Parts [Rolex 2135-205 Sliding Pinion Clutch Wheel
](https://www.soflypart.com/product/rolex-2135-205-sliding-pinion-clutch-wheel/) $60.00
You Saved
- [](https://www.soflypart.com/product/generic-girard-perregaux-calibre-3300-intermediate-setting-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-girard-perregaux-calibre-3300-intermediate-setting-wheel/)Watch Movement Parts [Girard Perregaux Calibre 3300 Intermediate Setting Wheel
](https://www.soflypart.com/product/generic-girard-perregaux-calibre-3300-intermediate-setting-wheel/) $120.00
You Saved
- [](https://www.soflypart.com/product/tmi-seiko-nh36-movement-day-date-corrector-setting-transmission-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/tmi-seiko-nh36-movement-day-date-corrector-setting-transmission-wheel/)Watch Movement Parts [SEIKO (SII) NH35/NH36/NH37 Day-Date Corrector Setting Transmission Wheel A
](https://www.soflypart.com/product/tmi-seiko-nh36-movement-day-date-corrector-setting-transmission-wheel/) $4.00
You Saved
- [](https://www.soflypart.com/product/generic-hublot-sapphire-dial-33mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-hublot-sapphire-dial-33mm/)Watch Parts [Generic Hublot Sapphire Dial 33mm
](https://www.soflypart.com/product/generic-hublot-sapphire-dial-33mm/) $240.00
You Saved
- [](https://www.soflypart.com/product/miyota-citizen-gm00-movement-winding-stem/)Quick View [Add to Cart](https://www.soflypart.com/product/miyota-citizen-gm00-movement-winding-stem/)Watch Parts [MIYOTA/CITIZEN GM00 Winding Stem
](https://www.soflypart.com/product/miyota-citizen-gm00-movement-winding-stem/) $1.00
You Saved
- [](https://www.soflypart.com/product/generic-omega-620-625-mainspring/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-omega-620-625-mainspring/)Watch Parts [Generic Omega 620 & 625 Mainspring
](https://www.soflypart.com/product/generic-omega-620-625-mainspring/) $23.00
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/2022/11/DSC00744.jpg","url":"https://www.soflypart.com/wp-content/uploads/2022/11/DSC00744.jpg","width":"580","height":"580","caption":"Citizen Eco Drive E210 Crystal","inLanguage":"en-US"},{"@type":"BreadcrumbList","@id":"https://www.soflypart.com/product/generic-jlc-jaeger-lecoultre-master-chronograph-q1752421-sapphire-crystal-35mm/#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-jlc-jaeger-lecoultre-master-chronograph-q1752421-sapphire-crystal-35mm/","name":"Generic JLC Jaeger-LeCoultre Master Chronograph Q1752421 Sapphire Crystal 35mm"}}]},{"@type":"WebPage","@id":"https://www.soflypart.com/product/generic-jlc-jaeger-lecoultre-master-chronograph-q1752421-sapphire-crystal-35mm/#webpage","url":"https://www.soflypart.com/product/generic-jlc-jaeger-lecoultre-master-chronograph-q1752421-sapphire-crystal-35mm/","name":"Generic JLC Jaeger-LeCoultre Master Chronograph Q1752421 Sapphire Crystal 35mm - Sofly","datePublished":"2022-11-21T17:57:33+08:00","dateModified":"2026-06-08T15:17:27+08:00","isPartOf":{"@id":"https://www.soflypart.com/#website"},"primaryImageOfPage":{"@id":"https://www.soflypart.com/wp-content/uploads/2022/11/DSC00744.jpg"},"inLanguage":"en-US","breadcrumb":{"@id":"https://www.soflypart.com/product/generic-jlc-jaeger-lecoultre-master-chronograph-q1752421-sapphire-crystal-35mm/#breadcrumb"}},{"@type":"ProductGroup","name":"Generic JLC Jaeger-LeCoultre Master Chronograph Q1752421 Sapphire Crystal 35mm - Sofly","description":"Generic JLC Master Chronograph 1752421 sapphire crystal, 35mm domed blue AR. Aftermarket replacement, scratch resistant.","sku":"330303205","category":"Watch Parts","mainEntityOfPage":{"@id":"https://www.soflypart.com/product/generic-jlc-jaeger-lecoultre-master-chronograph-q1752421-sapphire-crystal-35mm/#webpage"},"image":[{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2022/11/DSC00744.jpg","height":"580","width":"580"}],"url":"https://www.soflypart.com/product/generic-jlc-jaeger-lecoultre-master-chronograph-q1752421-sapphire-crystal-35mm/","productGroupID":"330303205","hasVariant":[{"@type":"Product","sku":"330303205","name":"Generic JLC Jaeger-LeCoultre Master Chronograph Q1752421 Sapphire Crystal 35mm - Jaeger-LeCoultre","description":"Product Description Generic domed round sapphire crystal for JLC Master Chronograph Q1752421, also fits Q153847N. Diameter 35.0mm, total thickness 3.4mm, step thickness 2.0mm, blue AR coating. Aftermarket replacement for damaged or scratched original crystals. Features & Function Domed round with blue AR coating \u2013 reduces glare. Synthetic sapphire \u2013 scratch resistant (Mohs 9). High optical clarity \u2013 maintains dial readability. Drop\u2011in replacement \u2013 no case modification. Specifications Parameter Value Compatible models Q1752421, Q153847N Diameter 35.0 mm Total thickness 3.4 mm Step thickness 2.0 mm Coating Blue anti\u2011reflective Material Synthetic sapphire Hardness Mohs 9 Type Aftermarket Applications Replace scratched/cracked original crystal. Professional watch repair and restoration. Frequently Asked Questions Q1: Genuine JLC part?\u00a0No, generic aftermarket. Q2: Does it include a gasket?\u00a0No, use original or purchase separately. Q3: Quality reliable?\u00a0Yes, from reputable suppliers. 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/2022/11/DSC00744-150x150.jpg","offers":{"@type":"Offer","description":"Product Description Generic domed round sapphire crystal for JLC Master Chronograph Q1752421, also fits Q153847N. Diameter 35.0mm, total thickness 3.4mm, step thickness 2.0mm, blue AR coating. Aftermarket replacement for damaged or scratched original crystals. Features & Function Domed round with blue AR coating \u2013 reduces glare. Synthetic sapphire \u2013 scratch resistant (Mohs 9). High optical clarity \u2013 maintains dial readability. Drop\u2011in replacement \u2013 no case modification. Specifications Parameter Value Compatible models Q1752421, Q153847N Diameter 35.0 mm Total thickness 3.4 mm Step thickness 2.0 mm Coating Blue anti\u2011reflective Material Synthetic sapphire Hardness Mohs 9 Type Aftermarket Applications Replace scratched/cracked original crystal. Professional watch repair and restoration. Frequently Asked Questions Q1: Genuine JLC part?\u00a0No, generic aftermarket. Q2: Does it include a gasket?\u00a0No, use original or purchase separately. Q3: Quality reliable?\u00a0Yes, from reputable suppliers. 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":"80","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/generic-jlc-jaeger-lecoultre-master-chronograph-q1752421-sapphire-crystal-35mm/?attribute_pa_brand=jaeger-le-coultre"}}],"@id":"https://www.soflypart.com/product/generic-jlc-jaeger-lecoultre-master-chronograph-q1752421-sapphire-crystal-35mm/#richSnippet"}]}
```