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Generic sapphire crystal for selected Roger Dubuis tonneau‑shaped watches. Dimensions: 27.3mm × 21.5mm. Domed profile with blue anti‑reflective (AR) coating. Synthetic sapphire (Mohs 9), scratch resistant. Aftermarket replacement for damaged or deeply scratched original crystals.
Domed shape with blue AR coating – reduces glare, improves readability
Synthetic sapphire – Mohs hardness 9, excellent scratch resistance
Dimensions: 27.3 × 21.5 mm – fits specific RD tonneau cases
High optical clarity – maintains dial visibility
Helps preserve water resistance when properly installed
| Parameter | Value |
|---|---|
| Dimensions | 27.3 × 21.5 mm |
| Shape | Domed round |
| Coating | Blue anti‑reflective |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket / Generic |
Replacing scratched, cracked, or damaged original crystals on compatible Roger Dubuis tonneau models.
Professional watch repair and restoration.
Maintaining watch aesthetics and basic water resistance.
Q1: Genuine Roger Dubuis part?
No, generic aftermarket.
Q2: Which models fit?
Fits selected RD tonneau watches with 27.3×21.5mm crystal opening. Measure before ordering.
Q3: Is the coating blue?
Yes, blue reflective AR.
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.
