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Generic flat rectangular sapphire crystal for Chopard Happy Sport 278937, also fits 278418. Dimensions 27.0 × 19.4 × 0.9 mm. Synthetic sapphire (Mohs 9), scratch resistant. Aftermarket replacement for damaged original crystals.
Flat rectangular – minimal distortion.
Synthetic sapphire – excellent scratch resistance (Mohs 9).
High optical clarity – maintains floating diamond visibility.
Drop‑in replacement – no case modification.
| Parameter | Value |
|---|---|
| Compatible models | 278937, 278418 |
| Dimensions | 27.0 × 19.4 mm |
| Thickness | 0.9 mm |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
Replace scratched/cracked original crystal.
Professional watch repair and restoration.
Q1: Genuine Chopard part? No, generic aftermarket.
Q2: Does it fit both models? Yes, 278937 and 278418.
Q3: Does it include a gasket? No, use original or purchase separately.
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.
