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This generic domed round sapphire crystal is designed for Breguet Tradition 7057 and also fits 5140, measuring 34.0mm in diameter with a dome height of 2.4mm and edge thickness of 0.8mm. Featuring blue reflective coating, it offers excellent optical clarity and scratch resistance for reliable watch glass replacement.
Domed round shape provides classic Tradition aesthetics and impact resistance
Blue reflective coating reduces glare and adds sophisticated appearance
0.8mm edge thickness offers ultra-thin profile for precise case fitting
High hardness (9 Mohs) resists daily scratches and wear
Diameter: 34.0 mm
Dome Height: 2.4 mm
Edge Thickness: 0.8 mm
Coating: Blue reflective
Shape: Domed Round
Material: Synthetic sapphire
Compatible Models: Breguet Tradition 7057, 5140
Replacement crystal for Breguet Tradition 7057 / 5140
Suitable for luxury open-worked 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 Tradition 7057 or 5140 perfectly?
Only if your watch uses exactly 34.0mm 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.









