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High-quality domed round sapphire crystal for JLC Master Hometime Q1622530, also fits Q1428421 and Q1622430. Diameter 33.5mm, total thickness 1.8mm, step thickness 1.1mm, includes fitted gasket. Aftermarket replacement for damaged original crystals.
Domed round – matches original profile, reduces glare.
Includes gasket – ensures secure installation and sealing.
Synthetic sapphire – scratch resistant (Mohs 9).
Drop‑in replacement – no case modification.
| Parameter | Value |
|---|---|
| Compatible models | Q1622530, Q1428421, Q1622430 |
| Diameter | 33.5 mm |
| Total thickness | 1.8 mm |
| Step thickness | 1.1 mm |
| Gasket | Included |
| 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: Gasket included? Yes.
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.









