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This generic domed round sapphire crystal is designed for the Breguet Type XX 4820ST/D2/S76, measuring 26.5mm in diameter with a dome height of 2.9mm and edge thickness of 1.4mm. Featuring blue reflective coating, it offers excellent optical clarity and scratch resistance for reliable watch glass replacement.
Domed round shape provides classic aesthetics and impact resistance
Blue reflective coating reduces glare and adds elegant appearance
1.4mm edge thickness offers enhanced strength and durability
High hardness (9 Mohs) resists daily scratches and wear
Diameter: 26.5 mm
Dome Height: 2.9 mm
Edge Thickness: 1.4 mm
Coating: Blue reflective
Shape: Domed Round
Material: Synthetic sapphire
Compatible Model: Breguet Type XX 4820ST/D2/S76
Replacement crystal for Breguet Type XX 4820ST/D2/S76
Suitable for luxury pilot watch restoration and repair
1.Is this an original Breguet part?
No, it is a generic compatible crystal, not OEM.
2.Will it fit my Type XX 4820ST/D2/S76 perfectly?*
Only if your watch uses exactly 26.5mm domed round 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.
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 [email protected] or WhatsApp +86 18620212114.









