Generic Zenith El Primero Grande Class 03.0520.4021 Sapphire Crystal 36.5mm

Product Description

This generic domed sapphire crystal is designed for the Zenith El Primero Grande Class 03.0520.4021, measuring 36.5mm in diameter with a height of 3.2mm and edge thickness of 1.2mm. Featuring blue reflective coating, it offers exceptional scratch resistance and reduced glare for improved readability.

Features & Function

• Domed profile offers classic Grande Class aesthetics

• Blue reflective coating reduces glare and enhances readability

• 1.2mm edge thickness balances strength and slim profile

• High hardness (9 Mohs) resists daily scratches and wear

Specifications

• Diameter: 36.5 mm

• Height: 3.2 mm

• Edge Thickness: 1.2 mm

• Coating: Blue reflective

• Shape: Domed

• Material: Synthetic sapphire (Mohs 9)

• Compatible Reference: Zenith El Primero Grande Class 03.0520.4021

Applications

• Replacement crystal for Zenith El Primero Grande Class 03.0520.4021

• Suitable for luxury chronograph watch restoration

FAQs

1.Is this an original Zenith part?
No, it is a generic compatible crystal, not OEM.

2.Will it fit my El Primero Grande Class perfectly?
Only if your watch uses exactly 36.5mm domed glass; measure before purchase.

3.Is the blue reflective coating scratch-resistant?
The coating is durable but may scratch over time; the sapphire underneath remains hard.

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