---
description: Generic IWC Big Ingenieur 500503 sapphire crystal, 35.5mm flat blue AR. Aftermarket replacement.
title: Generic IWC Big Ingenieur IW500503 Sapphire Crystal 35.5mm - Sofly
image: https://www.soflypart.com/wp-content/uploads/2022/11/DSC00814.jpg
---
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- **Generic IWC Big Ingenieur IW500503 Sapphire Crystal 35.5mm**
[](https://www.soflypart.com/wp-content/uploads/2022/11/DSC00814.jpg)
# Generic IWC Big Ingenieur IW500503 Sapphire Crystal 35.5mm
$70.00
You Saved
| Brand | Choose an option IWC- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $70.00 |
| 3 - 4 | 5% | $66.50 |
| 5 - 9 | 7% | $65.10 |
| 10 - 14 | 10% | $63.00 |
| 15+ | 15% | $59.50 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $70.00 |
| 3 - 4 | 5% | $66.50 |
| 5 - 9 | 7% | $65.10 |
| 10 - 14 | 10% | $63.00 |
| 15+ | 15% | $59.50 |
Generic IWC Big Ingenieur IW500503 Sapphire Crystal 35.5mm quantity
Add to cart
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## Product Description
Generic flat round sapphire crystal for IWC Big Ingenieur IW500503, also fits IW3765. Diameter 35.5mm, thickness 1.8mm, blue reflective coating. Aftermarket replacement for damaged original crystals.
## Features & Function
- Flat round with blue AR coating – reduces glare.
- Synthetic sapphire – scratch resistant (Mohs 9).
- High optical clarity – maintains dial readability.
- Drop‑in replacement – no case modification.
## Specifications
| Parameter | Value |
| --- | --- |
| Compatible models | IW500503, IW3765 |
| Diameter | 35.5 mm |
| Thickness | 1.8 mm |
| Coating | Blue reflective |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
## Applications
- Replace scratched/cracked original crystal on IWC Big Ingenieur models.
- Professional watch repair and restoration.
## Frequently Asked Questions
**Q1: Genuine IWC part?** No, generic aftermarket.
**Q2: Does it include a gasket?** No, use original or purchase separately.
**Q3: Quality reliable?** Yes, from reputable suppliers.
## 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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