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Generic domed round sapphire crystal for JLC Master Chronograph Q1752421, also fits Q153847N. Diameter 35.0mm, total thickness 3.4mm, step thickness 2.0mm, blue AR coating. Aftermarket replacement for damaged or scratched original crystals.
Domed round with blue AR coating – reduces glare.
Synthetic sapphire – scratch resistant (Mohs 9).
High optical clarity – maintains dial readability.
Drop‑in replacement – no case modification.
| Parameter | Value |
|---|---|
| Compatible models | Q1752421, Q153847N |
| Diameter | 35.0 mm |
| Total thickness | 3.4 mm |
| Step thickness | 2.0 mm |
| Coating | Blue anti‑reflective |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
Replace scratched/cracked original crystal.
Professional watch repair and restoration.
Q1: Genuine JLC part? No, generic aftermarket.
Q2: Does it include a gasket? No, use original or purchase separately.
Q3: Quality reliable? Yes, from reputable suppliers.
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.
