---
description: Generic flat octagonal sapphire for Patek Philippe. 18×15.5×0.8mm. Scratch-resistant. Compatible, not OEM. Verify size.
title: Generic Patek Philippe Octagonal Sapphire Crystal 18.0mm - Sofly
image: https://www.soflypart.com/wp-content/uploads/2022/03/DSC08702.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/)
-
- [Patek Philippe Crystal](https://www.soflypart.com/product-category/watch-parts/watch-crystals/patek-philippe-crystal/)
-
- [Watch Crystals](https://www.soflypart.com/product-category/watch-parts/watch-crystals/)
-
- **Generic Patek Philippe Octagonal Sapphire Crystal 18.0mm**
[](https://www.soflypart.com/wp-content/uploads/2022/03/DSC08702.jpg)
# Generic Patek Philippe Octagonal Sapphire Crystal 18.0mm
$55.00
You Saved
| Brand | Choose an option Patek Philippe- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $55.00 |
| 3 - 4 | 5% | $52.25 |
| 5 - 9 | 7% | $51.15 |
| 10 - 14 | 10% | $49.50 |
| 15+ | 15% | $46.75 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $55.00 |
| 3 - 4 | 5% | $52.25 |
| 5 - 9 | 7% | $51.15 |
| 10 - 14 | 10% | $49.50 |
| 15+ | 15% | $46.75 |
Generic Patek Philippe Octagonal Sapphire Crystal 18.0mm 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 octagonal sapphire crystal is compatible with select Patek Philippe models, measuring 18.0mm × 15.5mm with a thickness of 0.8mm. Its flat octagonal design offers excellent optical clarity and scratch resistance for reliable watch glass replacement.
## Features & Function
- Flat octagonal shape provides a distinctive geometric aesthetic
- 0.8mm ultra-thin profile for precise case fitting
- High hardness (9 Mohs) resists daily scratches and wear
- Generic design – always verify dimensions with original glass
## Specifications
- Length: 18.0 mm
- Width: 15.5 mm
- Thickness: 0.8 mm
- Shape: Flat Octagonal
- Material: Synthetic sapphire
- Compatible: Select Patek Philippe models
## Applications
- Replacement crystal for select Patek Philippe octagonal watches
- Suitable for luxury watch restoration and repair
## FAQs
*1.Is this an original Patek Philippe part?*
No, it is a generic compatible crystal, not OEM.
*2.Will it fit my Patek Philippe watch perfectly?*
Only if your watch uses exactly 18.0×15.5×0.8mm octagonal glass; measure before purchase.
*3.Is octagonal sapphire more fragile than round?*
Octagonal corners may be slightly more vulnerable; handle with care during installation.
## 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/tmi-seiko-vx10-movement-coil-block/)Quick View [Add to Cart](https://www.soflypart.com/product/tmi-seiko-vx10-movement-coil-block/)Watch Circuit & Coil [Hattori VX10 Movement Coil Block
](https://www.soflypart.com/product/tmi-seiko-vx10-movement-coil-block/) $1.00
You Saved
- [](https://www.soflypart.com/product/watch-band-butterfly-deployant-clasp-with-push-button-stainless-steel/)Quick View [Add to Cart](https://www.soflypart.com/product/watch-band-butterfly-deployant-clasp-with-push-button-stainless-steel/)Watch Parts [Watch Band Butterfly Deployant Clasp With Push Button Stainless Steel
](https://www.soflypart.com/product/watch-band-butterfly-deployant-clasp-with-push-button-stainless-steel/) $4.50
You Saved
- [](https://www.soflypart.com/product/generic-rolex-bezel-gasket-116713-16610-116621-1166228/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-rolex-bezel-gasket-116713-16610-116621-1166228/)Watch Parts [Generic Rolex Yacht-Master 40 116622/126622 Bezel Gasket 32mm
](https://www.soflypart.com/product/generic-rolex-bezel-gasket-116713-16610-116621-1166228/) $8.00
You Saved
- [](https://www.soflypart.com/product/miyota-citizen-9015-movement-setting-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/miyota-citizen-9015-movement-setting-wheel/)Watch Movement Parts [MIYOTA/CITIZEN 9015 Setting Wheel
](https://www.soflypart.com/product/miyota-citizen-9015-movement-setting-wheel/) $2.50
You Saved
- [](https://www.soflypart.com/product/generic-audemars-piguet-3090-mainspring/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-audemars-piguet-3090-mainspring/)Watch Parts [Generic Audemars Piguet 3090 Mainspring
](https://www.soflypart.com/product/generic-audemars-piguet-3090-mainspring/) $23.00
You Saved
- [](https://www.soflypart.com/product/generic-patek-philippe-annual-calendar-5035g-sapphire-crystal-29-5mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-patek-philippe-annual-calendar-5035g-sapphire-crystal-29-5mm/)Watch Parts [Generic Patek Philippe Annual Calendar 5035G/5036/5056/3940 Sapphire Crystal 29.5mm
](https://www.soflypart.com/product/generic-patek-philippe-annual-calendar-5035g-sapphire-crystal-29-5mm/) $105.00
You Saved
- [](https://www.soflypart.com/product/cartier-caliber-1847-bridge-screw/)Quick View [Add to Cart](https://www.soflypart.com/product/cartier-caliber-1847-bridge-screw/)Watch Parts [Cartier Caliber 1847 Bridge Screw
](https://www.soflypart.com/product/cartier-caliber-1847-bridge-screw/) $15.00
You Saved
- [](https://www.soflypart.com/product/generic-audemars-piguet-case-bezel-screw-for-royal-oak-26078/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-audemars-piguet-case-bezel-screw-for-royal-oak-26078/)Watch Parts [Generic Audemars Piguet Case Bezel Screw For Royal OAK 26078
](https://www.soflypart.com/product/generic-audemars-piguet-case-bezel-screw-for-royal-oak-26078/) $18.00
You Saved
- [](https://www.soflypart.com/product/generic-cartier-ballon-bleu-we902056-sapphire-crystal-32-4mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-cartier-ballon-bleu-we902056-sapphire-crystal-32-4mm/)Watch Parts [Generic Cartier Ballon Bleu WE902056 Sapphire Crystal 32.4mm
](https://www.soflypart.com/product/generic-cartier-ballon-bleu-we902056-sapphire-crystal-32-4mm/) $40.00
You Saved
- [](https://www.soflypart.com/product/generic-franck-muller-master-square-6002l-sapphire-crystal-23-7mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-franck-muller-master-square-6002l-sapphire-crystal-23-7mm/)Watch Parts [Generic Franck Muller Master Square 6002L Sapphire Crystal 23.7mm
](https://www.soflypart.com/product/generic-franck-muller-master-square-6002l-sapphire-crystal-23-7mm/) $60.00
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/2022/03/DSC08702.jpg","url":"https://www.soflypart.com/wp-content/uploads/2022/03/DSC08702.jpg","width":"580","height":"580","caption":"Patek Philippe Octagonal Crystal 18.0mm","inLanguage":"en-US"},{"@type":"BreadcrumbList","@id":"https://www.soflypart.com/product/generic-patek-philippe-sapphire-crystal-18-0mm/#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-patek-philippe-sapphire-crystal-18-0mm/","name":"Generic Patek Philippe Octagonal Sapphire Crystal 18.0mm"}}]},{"@type":"WebPage","@id":"https://www.soflypart.com/product/generic-patek-philippe-sapphire-crystal-18-0mm/#webpage","url":"https://www.soflypart.com/product/generic-patek-philippe-sapphire-crystal-18-0mm/","name":"Generic Patek Philippe Octagonal Sapphire Crystal 18.0mm - Sofly","datePublished":"2022-03-28T18:28:56+08:00","dateModified":"2026-06-26T10:36:17+08:00","isPartOf":{"@id":"https://www.soflypart.com/#website"},"primaryImageOfPage":{"@id":"https://www.soflypart.com/wp-content/uploads/2022/03/DSC08702.jpg"},"inLanguage":"en-US","breadcrumb":{"@id":"https://www.soflypart.com/product/generic-patek-philippe-sapphire-crystal-18-0mm/#breadcrumb"}},{"@type":"ProductGroup","name":"Generic Patek Philippe Octagonal Sapphire Crystal 18.0mm - Sofly","description":"Generic flat octagonal sapphire for Patek Philippe. 18\u00d715.5\u00d70.8mm. Scratch-resistant. Compatible, not OEM. Verify size.","sku":"330102121","category":"Watch Parts","mainEntityOfPage":{"@id":"https://www.soflypart.com/product/generic-patek-philippe-sapphire-crystal-18-0mm/#webpage"},"image":[{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2022/03/DSC08702.jpg","height":"580","width":"580"}],"url":"https://www.soflypart.com/product/generic-patek-philippe-sapphire-crystal-18-0mm/","productGroupID":"330102121","hasVariant":[{"@type":"Product","sku":"330102121","name":"Generic Patek Philippe Octagonal Sapphire Crystal 18.0mm - Patek Philippe","description":"Product Description This generic flat octagonal sapphire crystal is compatible with select Patek Philippe models, measuring 18.0mm \u00d7 15.5mm with a thickness of 0.8mm. Its flat octagonal design offers excellent optical clarity and scratch resistance for reliable watch glass replacement. Features & Function Flat octagonal shape provides a distinctive geometric aesthetic 0.8mm ultra-thin profile for precise case fitting High hardness (9 Mohs) resists daily scratches and wear Generic design \u2013 always verify dimensions with original glass Specifications Length: 18.0 mm Width: 15.5 mm Thickness: 0.8 mm Shape: Flat Octagonal Material: Synthetic sapphire Compatible: Select Patek Philippe models Applications Replacement crystal for select Patek Philippe octagonal watches Suitable for luxury watch restoration and repair FAQs 1.Is this an original Patek Philippe part? No, it is a generic compatible crystal, not OEM. 2.Will it fit my Patek Philippe watch perfectly? Only if your watch uses exactly 18.0\u00d715.5\u00d70.8mm octagonal glass; measure before purchase. 3.Is octagonal sapphire more fragile than round? Octagonal corners may be slightly more vulnerable; handle with care during installation. 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/2022/03/DSC08702-150x150.jpg","offers":{"@type":"Offer","description":"Product Description This generic flat octagonal sapphire crystal is compatible with select Patek Philippe models, measuring 18.0mm \u00d7 15.5mm with a thickness of 0.8mm. Its flat octagonal design offers excellent optical clarity and scratch resistance for reliable watch glass replacement. Features & Function Flat octagonal shape provides a distinctive geometric aesthetic 0.8mm ultra-thin profile for precise case fitting High hardness (9 Mohs) resists daily scratches and wear Generic design \u2013 always verify dimensions with original glass Specifications Length: 18.0 mm Width: 15.5 mm Thickness: 0.8 mm Shape: Flat Octagonal Material: Synthetic sapphire Compatible: Select Patek Philippe models Applications Replacement crystal for select Patek Philippe octagonal watches Suitable for luxury watch restoration and repair FAQs 1.Is this an original Patek Philippe part? No, it is a generic compatible crystal, not OEM. 2.Will it fit my Patek Philippe watch perfectly? Only if your watch uses exactly 18.0\u00d715.5\u00d70.8mm octagonal glass; measure before purchase. 3.Is octagonal sapphire more fragile than round? Octagonal corners may be slightly more vulnerable; handle with care during installation. 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":"55","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/generic-patek-philippe-sapphire-crystal-18-0mm/?attribute_pa_brand=patek-philippe"}}],"@id":"https://www.soflypart.com/product/generic-patek-philippe-sapphire-crystal-18-0mm/#richSnippet"}]}
```