---
description: Generic flat square sapphire for Franck Muller Master Square. 31.76×31.76mm, blue reflective. Scratch-resistant. Compatible, not OEM. Verify size.
title: Generic Franck Muller Master Square Sapphire Crystal 31.76mm - Sofly
image: https://www.soflypart.com/wp-content/uploads/2022/04/DSC09720-1.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/)
-
- [Franck Muller Crystal](https://www.soflypart.com/product-category/watch-parts/watch-crystals/franck-muller-crystal/)
-
- [Watch Crystals](https://www.soflypart.com/product-category/watch-parts/watch-crystals/)
-
- **Generic Franck Muller Master Square Sapphire Crystal 31.76mm**
[](https://www.soflypart.com/wp-content/uploads/2022/04/DSC09720-1.jpg)
# Generic Franck Muller Master Square Sapphire Crystal 31.76mm
$75.00
You Saved
| Brand | Choose an option Franck Muller- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $75.00 |
| 3 - 4 | 5% | $71.25 |
| 5 - 9 | 7% | $69.75 |
| 10 - 14 | 10% | $67.50 |
| 15+ | 15% | $63.75 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $75.00 |
| 3 - 4 | 5% | $71.25 |
| 5 - 9 | 7% | $69.75 |
| 10 - 14 | 10% | $67.50 |
| 15+ | 15% | $63.75 |
Generic Franck Muller Master Square Sapphire Crystal 31.76mm 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
This generic flat sapphire crystal is compatible with Franck Muller Master Square models, measuring 31.76mm × 31.76mm. Featuring blue reflective coating, it offers excellent optical clarity and scratch resistance for reliable watch glass replacement.
## Features & Function
- Flat square shape minimizes optical distortion for clear dial viewing
- Blue reflective coating reduces glare and adds elegant appearance
- High hardness (9 Mohs) resists daily scratches and wear
- Generic design – always verify dimensions with original glass
## Specifications
- Length: 31.76 mm
- Width: 31.76 mm
- Coating: Blue reflective
- Shape: Flat Square
- Material: Synthetic sapphire
- Compatible Series: Franck Muller Master Square
## Applications
- Replacement crystal for Franck Muller Master Square watches
- Suitable for luxury square watch restoration
## FAQs
*1.Is this an original Franck Muller part?*
No, it is a generic compatible crystal, not OEM.
*2.Will it fit my Master Square watch perfectly?*
Only if your watch uses exactly 31.76mm square glass; measure before purchase.
*3.Is the blue reflective coating scratch-resistant?*
The coating is durable but may scratch over time; the sapphire underneath remains hard.
## 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-tag-heuer-sliver-crown-screw-down-4-5mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-tag-heuer-sliver-crown-screw-down-4-5mm/)Watch Parts [Generic TAG Heuer Sliver Crown Screw Down 4.5mm
](https://www.soflypart.com/product/generic-tag-heuer-sliver-crown-screw-down-4-5mm/) $25.00
You Saved
- [](https://www.soflypart.com/product/miyota-citizen-9015-movement-lever/)Quick View [Add to Cart](https://www.soflypart.com/product/miyota-citizen-9015-movement-lever/)Watch Movement Parts [MIYOTA/CITIZEN 9015 Lever
](https://www.soflypart.com/product/miyota-citizen-9015-movement-lever/) $2.50
You Saved
- [](https://www.soflypart.com/product/generic-mido-m024-407-rose-gold-watch-crown-and-tube-6-5mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-mido-m024-407-rose-gold-watch-crown-and-tube-6-5mm/)Watch Parts [Generic Mido M024.407 Rose Gold Watch Crown And Tube 6.5mm
](https://www.soflypart.com/product/generic-mido-m024-407-rose-gold-watch-crown-and-tube-6-5mm/) $7.00
You Saved
- [](https://www.soflypart.com/product/generic-rolex-milgauss-116400-crystal-gasket/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-rolex-milgauss-116400-crystal-gasket/)Rolex Crystal Gasket [Generic Rolex Milgauss 116400 Crystal Gasket
](https://www.soflypart.com/product/generic-rolex-milgauss-116400-crystal-gasket/) $8.00
You Saved
- [](https://www.soflypart.com/product/generic-tag-heuer-sliver-crown-screw-down-4-3mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-tag-heuer-sliver-crown-screw-down-4-3mm/)Watch Parts [Generic TAG Heuer Sliver Crown Screw Down 4.3mm
](https://www.soflypart.com/product/generic-tag-heuer-sliver-crown-screw-down-4-3mm/) $25.00
You Saved
- [](https://www.soflypart.com/product/generic-longines-conquest-classic-l2-786-sapphire-crystal-34mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-longines-conquest-classic-l2-786-sapphire-crystal-34mm/)Watch Parts [Generic Longines Conquest Classic L2.786 Sapphire Crystal 34mm
](https://www.soflypart.com/product/generic-longines-conquest-classic-l2-786-sapphire-crystal-34mm/) $25.00
You Saved
- [](https://www.soflypart.com/product/sellita-sw200-2595-date-jumper-maintaining-plate/)Quick View [Add to Cart](https://www.soflypart.com/product/sellita-sw200-2595-date-jumper-maintaining-plate/)Watch Parts [Sellita SW200-2595 Date Jumper Maintaining Plate
](https://www.soflypart.com/product/sellita-sw200-2595-date-jumper-maintaining-plate/) $4.50
You Saved
- [](https://www.soflypart.com/product/generic-chopard-happy-diamonds-sapphire-crystal-18-5mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-chopard-happy-diamonds-sapphire-crystal-18-5mm/)Watch Parts [Generic Chopard Happy Diamonds Sapphire Crystal 18.5mm
](https://www.soflypart.com/product/generic-chopard-happy-diamonds-sapphire-crystal-18-5mm/) $50.00
You Saved
- [](https://www.soflypart.com/product/hublot-1242-silicon-pallet-fork/)Quick View [Add to Cart](https://www.soflypart.com/product/hublot-1242-silicon-pallet-fork/)Watch Parts [Hublot 1242 Silicon Pallet Fork
](https://www.soflypart.com/product/hublot-1242-silicon-pallet-fork/) $780.00
You Saved
- [](https://www.soflypart.com/product/eta-2000-1-movement-setting-lever/)Quick View [Add to Cart](https://www.soflypart.com/product/eta-2000-1-movement-setting-lever/)Watch Movement Parts [ETA 2000-443 Movement Setting Lever
](https://www.soflypart.com/product/eta-2000-1-movement-setting-lever/) $7.00
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/2022/04/DSC09720-1.jpg","url":"https://www.soflypart.com/wp-content/uploads/2022/04/DSC09720-1.jpg","width":"580","height":"580","caption":"Franck Muller Master Square Sapphire Crystal 31.76mm","inLanguage":"en-US"},{"@type":"BreadcrumbList","@id":"https://www.soflypart.com/product/generic-franck-muller-master-square-sapphire-crystal-31-76mm/#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-franck-muller-master-square-sapphire-crystal-31-76mm/","name":"Generic Franck Muller Master Square Sapphire Crystal 31.76mm"}}]},{"@type":"WebPage","@id":"https://www.soflypart.com/product/generic-franck-muller-master-square-sapphire-crystal-31-76mm/#webpage","url":"https://www.soflypart.com/product/generic-franck-muller-master-square-sapphire-crystal-31-76mm/","name":"Generic Franck Muller Master Square Sapphire Crystal 31.76mm - Sofly","datePublished":"2022-04-28T15:48:15+08:00","dateModified":"2026-06-16T11:14:20+08:00","isPartOf":{"@id":"https://www.soflypart.com/#website"},"primaryImageOfPage":{"@id":"https://www.soflypart.com/wp-content/uploads/2022/04/DSC09720-1.jpg"},"inLanguage":"en-US","breadcrumb":{"@id":"https://www.soflypart.com/product/generic-franck-muller-master-square-sapphire-crystal-31-76mm/#breadcrumb"}},{"@type":"ProductGroup","name":"Generic Franck Muller Master Square Sapphire Crystal 31.76mm - Sofly","description":"Generic flat square sapphire for Franck Muller Master Square. 31.76\u00d731.76mm, blue reflective. Scratch-resistant. Compatible, not OEM. Verify size.","sku":"330302466","category":"Watch Parts","mainEntityOfPage":{"@id":"https://www.soflypart.com/product/generic-franck-muller-master-square-sapphire-crystal-31-76mm/#webpage"},"image":[{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2022/04/DSC09720-1.jpg","height":"580","width":"580"}],"url":"https://www.soflypart.com/product/generic-franck-muller-master-square-sapphire-crystal-31-76mm/","productGroupID":"330302466","hasVariant":[{"@type":"Product","sku":"330302466","name":"Generic Franck Muller Master Square Sapphire Crystal 31.76mm - Franck Muller","description":"Product Description This generic flat sapphire crystal is compatible with Franck Muller Master Square models, measuring 31.76mm \u00d7 31.76mm. Featuring blue reflective coating, it offers excellent optical clarity and scratch resistance for reliable watch glass replacement. Features & Function Flat square shape minimizes optical distortion for clear dial viewing Blue reflective coating reduces glare and adds elegant appearance High hardness (9 Mohs) resists daily scratches and wear Generic design \u2013 always verify dimensions with original glass Specifications Length: 31.76 mm Width: 31.76 mm Coating: Blue reflective Shape: Flat Square Material: Synthetic sapphire Compatible Series: Franck Muller Master Square Applications Replacement crystal for Franck Muller Master Square watches Suitable for luxury square watch restoration FAQs 1.Is this an original Franck Muller part? No, it is a generic compatible crystal, not OEM. 2.Will it fit my Master Square watch perfectly? Only if your watch uses exactly 31.76mm square glass; measure before purchase. 3.Is the blue reflective coating scratch-resistant? The coating is durable but may scratch over time; the sapphire underneath remains hard. 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/2022/04/DSC09720-1-150x150.jpg","offers":{"@type":"Offer","description":"Product Description This generic flat sapphire crystal is compatible with Franck Muller Master Square models, measuring 31.76mm \u00d7 31.76mm. Featuring blue reflective coating, it offers excellent optical clarity and scratch resistance for reliable watch glass replacement. Features & Function Flat square shape minimizes optical distortion for clear dial viewing Blue reflective coating reduces glare and adds elegant appearance High hardness (9 Mohs) resists daily scratches and wear Generic design \u2013 always verify dimensions with original glass Specifications Length: 31.76 mm Width: 31.76 mm Coating: Blue reflective Shape: Flat Square Material: Synthetic sapphire Compatible Series: Franck Muller Master Square Applications Replacement crystal for Franck Muller Master Square watches Suitable for luxury square watch restoration FAQs 1.Is this an original Franck Muller part? No, it is a generic compatible crystal, not OEM. 2.Will it fit my Master Square watch perfectly? Only if your watch uses exactly 31.76mm square glass; measure before purchase. 3.Is the blue reflective coating scratch-resistant? The coating is durable but may scratch over time; the sapphire underneath remains hard. 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":"75","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/generic-franck-muller-master-square-sapphire-crystal-31-76mm/?attribute_pa_brand=franck-muller"}}],"@id":"https://www.soflypart.com/product/generic-franck-muller-master-square-sapphire-crystal-31-76mm/#richSnippet"}]}
```