---
description: Generic Roger Dubuis sapphire crystal 31x31mm domed square blue AR. Aftermarket replacement, scratch resistant.
title: Generic Roger Dubuis Sapphire Crystal 31mm - Sofly
image: https://www.soflypart.com/wp-content/uploads/2024/03/DSC09750.jpg
---
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- **Generic Roger Dubuis Sapphire Crystal 31mm**
[](https://www.soflypart.com/wp-content/uploads/2024/03/DSC09750.jpg)
# Generic Roger Dubuis Sapphire Crystal 31mm
$105.00
You Saved
| Brand | Choose an option Roger Dubuis- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $105.00 |
| 3 - 4 | 5% | $99.75 |
| 5 - 9 | 7% | $97.65 |
| 10 - 14 | 10% | $94.50 |
| 15+ | 15% | $89.25 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $105.00 |
| 3 - 4 | 5% | $99.75 |
| 5 - 9 | 7% | $97.65 |
| 10 - 14 | 10% | $94.50 |
| 15+ | 15% | $89.25 |
Generic Roger Dubuis Sapphire Crystal 31mm quantity
Add to cart
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## Product Description
Generic sapphire crystal for Roger Dubuis square‑case models. Dimensions: 31.0mm × 31.0mm, total thickness 4.58mm, step thickness 2.58mm. Domed square shape with blue anti‑reflective coating. Synthetic sapphire (Mohs 9), scratch resistant. Aftermarket replacement for damaged original crystals.
## Features & Function
- Domed square with blue AR coating – reduces glare
- Synthetic sapphire – excellent scratch resistance (Mohs 9)
- Dimensions: 31.0 × 31.0 × 4.58 × 2.58 mm
- High optical clarity
- Affordable alternative to OEM crystal
## Specifications
| Parameter | Value |
| --- | --- |
| Shape | Domed square |
| Dimensions | 31.0 × 31.0 mm |
| Total thickness | 4.58 mm |
| Step thickness | 2.58 mm |
| Coating | Blue anti‑reflective |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
## Applications
- Replacing scratched, cracked, or damaged original crystals on compatible Roger Dubuis square watches.
- Professional watch repair and restoration.
## Frequently Asked Questions
**Q1: Genuine Roger Dubuis part?**
No, generic aftermarket.
**Q2: Which models fit?**
Fits RD square cases with 31mm crystal opening. Measure before ordering.
**Q3: Is the coating blue?**
Yes, blue reflective AR.
## 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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