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Generic sapphire crystal for Roger Dubuis square‑case models. Dimensions: 25.5mm × 25.5mm, total thickness 4.0mm, step thickness 2.5mm. Domed square with blue anti‑reflective coating. Synthetic sapphire (Mohs 9), scratch resistant. Aftermarket replacement for damaged original crystals.
Domed square with blue AR coating – reduces glare
Synthetic sapphire – excellent scratch resistance (Mohs 9)
Dimensions: 25.5 × 25.5 × 4.0 × 2.5 mm
High optical clarity
Affordable alternative to OEM
| Parameter | Value |
|---|---|
| Shape | Domed square |
| Dimensions | 25.5 × 25.5 mm |
| Total thickness | 4.0 mm |
| Step thickness | 2.5 mm |
| Coating | Blue anti‑reflective |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
Replace scratched, cracked, or damaged original crystals on compatible Roger Dubuis square watches.
Professional watch repair and restoration.
Q1: Genuine Roger Dubuis part?
No, generic aftermarket.
Q2: Which models fit?
Fits RD square cases with 25.5mm 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.
