JLC Jaeger-LeCoultre Q1728401 Crystal

Generic JLC Jaeger-LeCoultre Master Compressor Q1728401 Sapphire Crystal 31mm

$70.00
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Quantity Discount (%) Price
1 - 2 — $70.00
3 - 4 5% $66.50
5 - 9 7% $65.10
10 - 14 10% $63.00
15+ 15% $59.50
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Product Description

Generic domed round sapphire crystal for JLC Master Compressor Q1728401. Diameter 31.0mm, total thickness 2.5mm, step thickness 1.7mm, includes matching gasket. Aftermarket replacement for damaged original crystals.

Features & Function

  • Domed round – reduces glare, classic sport watch style.

  • Includes gasket – ensures proper sealing.

  • Synthetic sapphire – scratch resistant (Mohs 9).

  • Drop‑in replacement – no case modification.

Specifications

ParameterValue
Compatible modelJLC Master Compressor Q1728401
Diameter31.0 mm
Total thickness2.5 mm
Step thickness1.7 mm
GasketIncluded
MaterialSynthetic sapphire
HardnessMohs 9
TypeAftermarket

Applications

  • Replace scratched/cracked original crystal.

  • Professional watch repair and restoration.

Frequently Asked Questions

Q1: Genuine JLC part? No, generic aftermarket.

Q2: Gasket included? Yes.

Q3: Quality reliable? Yes, from reputable suppliers.

Why Choose SOFLY Watch Parts?

  • 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.

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