---
description: Generic crystal gasket for Rolex Oyster Perpetual 31 177200. Nylon, waterproof tested, fits original crystal. Aftermarket replacement for service.
title: Generic Rolex Oyster Perpetual 31 177200 Crystal Gasket - Sofly
image: https://www.soflypart.com/wp-content/uploads/2024/03/Rolex-crystal-gasket.jpg
---
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- **Generic Rolex Oyster Perpetual 31 177200 Crystal Gasket**
[](https://www.soflypart.com/wp-content/uploads/2024/03/Rolex-crystal-gasket.jpg)
# Generic Rolex Oyster Perpetual 31 177200 Crystal Gasket
$8.00
You Saved
| Brand | Choose an option ROLEX- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $8.00 |
| 3 - 4 | 5% | $7.60 |
| 5 - 9 | 7% | $7.44 |
| 10 - 14 | 10% | $7.20 |
| 15+ | 15% | $6.80 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $8.00 |
| 3 - 4 | 5% | $7.60 |
| 5 - 9 | 7% | $7.44 |
| 10 - 14 | 10% | $7.20 |
| 15+ | 15% | $6.80 |
Generic Rolex Oyster Perpetual 31 177200 Crystal Gasket quantity
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## Product Description
This is a generic crystal gasket designed for the Rolex Oyster Perpetual 31 reference 177200, sized to fit the original Rolex crystal perfectly. Made of nylon and having passed water resistance testing, it ensures a reliable seal between the crystal and the case after installation. We also supply high‑quality Rolex crystals and bezel gaskets to meet all your service needs.
## Features & Function
- **OEM Size Fit** – Precisely matches the original Rolex crystal for the Oyster Perpetual 31 177200.
- **Nylon Material** – Durable, aging‑resistant, and corrosion‑resistant for long‑lasting sealing.
- **Waterproof Tested** – Ensures factory water resistance when installed correctly.
- **Generic Aftermarket** – Non‑original but fully compatible in size and performance.
- **One‑Stop Solution** – Available with our Rolex crystals and bezel gaskets for complete service.
## Specifications
| Parameter | Details |
| --- | --- |
| Compatible Model | Rolex Oyster Perpetual 31 177200 (31mm case) |
| Type | Crystal gasket |
| Material | Nylon |
| Function | Seals between crystal and case for water resistance |
| Waterproof Test | Passed |
| Packaging | Sold individually |
## Applications
- Replacing the original crystal gasket on the Rolex Oyster Perpetual 31 177200.
- Restoring full water resistance when servicing the watch, especially when replacing the crystal or bezel gasket.
- Suitable for the 31mm Oyster Perpetual case.
## Frequently Asked Questions
**1. Is this a genuine Rolex crystal gasket?**
No. It is a generic aftermarket replacement, not original, but fully compatible in size and performance.
**2. Will the original water resistance be maintained after installation?**
Yes. The gasket has passed water resistance testing. When installed correctly, it can achieve factory‑spec water resistance (typically 100m). A pressure test is recommended.
**3. How does nylon compare to rubber?**
Nylon gaskets have lower compression set and resist hardening over time, making them ideal for precision press‑fit installations. Rolex original crystal gaskets also use a similar nylon material.
**4. Is it included with a crystal?**
No, this gasket is sold separately. Please purchase our compatible crystal separately.
**5. How do I install it?**
Place the gasket flat into the case groove without twisting, then press the crystal in. Use a crystal press and follow the Rolex technical guide. Professional installation is strongly recommended.
## 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**.
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We also supply high\u2011quality Rolex crystals and bezel gaskets to meet all your service needs. Features & Function OEM Size Fit\u00a0\u2013 Precisely matches the original Rolex crystal for the Oyster Perpetual 31 177200. Nylon Material\u00a0\u2013 Durable, aging\u2011resistant, and corrosion\u2011resistant for long\u2011lasting sealing. Waterproof Tested\u00a0\u2013 Ensures factory water resistance when installed correctly. Generic Aftermarket\u00a0\u2013 Non\u2011original but fully compatible in size and performance. One\u2011Stop Solution\u00a0\u2013 Available with our Rolex crystals and bezel gaskets for complete service. Specifications Parameter Details Compatible Model Rolex Oyster Perpetual 31 177200 (31mm case) Type Crystal gasket Material Nylon Function Seals between crystal and case for water resistance Waterproof Test Passed Packaging Sold individually Applications Replacing the original crystal gasket on the Rolex Oyster Perpetual 31 177200. 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We also supply high\u2011quality Rolex crystals and bezel gaskets to meet all your service needs. Features & Function OEM Size Fit\u00a0\u2013 Precisely matches the original Rolex crystal for the Oyster Perpetual 31 177200. Nylon Material\u00a0\u2013 Durable, aging\u2011resistant, and corrosion\u2011resistant for long\u2011lasting sealing. Waterproof Tested\u00a0\u2013 Ensures factory water resistance when installed correctly. Generic Aftermarket\u00a0\u2013 Non\u2011original but fully compatible in size and performance. One\u2011Stop Solution\u00a0\u2013 Available with our Rolex crystals and bezel gaskets for complete service. Specifications Parameter Details Compatible Model Rolex Oyster Perpetual 31 177200 (31mm case) Type Crystal gasket Material Nylon Function Seals between crystal and case for water resistance Waterproof Test Passed Packaging Sold individually Applications Replacing the original crystal gasket on the Rolex Oyster Perpetual 31 177200. Restoring full water resistance when servicing the watch, especially when replacing the crystal or bezel gasket. Suitable for the 31mm Oyster Perpetual case. Frequently Asked Questions 1. Is this a genuine Rolex crystal gasket? No. It is a generic aftermarket replacement, not original, but fully compatible in size and performance. 2. Will the original water resistance be maintained after installation? Yes. The gasket has passed water resistance testing. When installed correctly, it can achieve factory\u2011spec water resistance (typically 100m). A pressure test is recommended. 3. How does nylon compare to rubber? Nylon gaskets have lower compression set and resist hardening over time, making them ideal for precision press\u2011fit installations. Rolex original crystal gaskets also use a similar nylon material. 4. Is it included with a crystal? No, this gasket is sold separately. Please purchase our compatible crystal separately. 5. How do I install it? 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