---
description: Generic Tudor Hydronaut 20040 sapphire crystal 30.6mm flat round. Fits 20200/20030/20050. Aftermarket replacement.
title: Generic Tudor Hydronaut 20040 Sapphire Crystal 30.6mm - Sofly
image: https://www.soflypart.com/wp-content/uploads/2022/03/DSC08665.jpg
---
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- **Generic Tudor Hydronaut 20040 Sapphire Crystal 30.6mm**
[](https://www.soflypart.com/wp-content/uploads/2022/03/DSC08665.jpg)
# Generic Tudor Hydronaut 20040 Sapphire Crystal 30.6mm
$55.00
You Saved
| Brand | Choose an option Tudor- 
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 Tudor Hydronaut 20040 Sapphire Crystal 30.6mm quantity
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- Covers 99% of Repair Needs
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## Product Description
Generic flat round sapphire crystal for Tudor Hydronaut 20040. Diameter 30.6mm, thickness 2.5mm. Synthetic sapphire (Mohs 9), scratch resistant. Also fits Tudor 20200, 20030, 20050. Aftermarket replacement for damaged original crystals.
## Features & Function
- Flat round shape – classic diver style
- Synthetic sapphire – excellent scratch resistance (Mohs 9)
- Precise dimensions: 30.6 × 2.5 mm
- High optical clarity – maintains dial visibility
- Affordable alternative to OEM crystal
## Specifications
| Parameter | Value |
| --- | --- |
| Compatible models | Tudor Hydronaut 20040, 20200, 20030, 20050 |
| Diameter | 30.6 mm |
| Thickness | 2.5 mm |
| Shape | Flat round |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
## Applications
- Replace scratched, cracked, or damaged original crystals on Tudor Hydronaut models.
- Suitable for 20040, 20200, 20030, 20050 references.
- Professional watch repair and restoration.
## Frequently Asked Questions
**Q1: Genuine Tudor part?**
No, generic aftermarket.
**Q2: Does it fit all listed models?**
Yes, 20040, 20200, 20030, 20050 share same crystal dimensions.
**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**.
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