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This is a generic sapphire crystal designed for the Rolex GMT-Master II 126710 (and compatible 116710/126710 series), measuring 30.4mm in length, 29.5mm in width, and 1.8mm in thickness.
Featuring a flat profile with a Cyclops magnifier at 3 o’clock and the laser-etched Rolex coronet logo at 6 o’clock, this aftermarket replacement crystal comes complete with a matching gasket for secure, water-resistant installation.
The original 126710 GMT-Master II features a 40mm Oyster case, 100m water resistance, and is powered by the Caliber 3285 movement with a 70-hour power reserve.
Sapphire Crystal – Mohs 9, highly scratch-resistant and optically clear.
Cyclops Magnifier – 2.5x date magnification at 3 o‘clock for easy reading.
Laser-Etched Crown Logo – Rolex coronet at 6 o’clock for an authentic look.
Includes Waterproof Gasket – Matching gasket included for proper sealing.
Precise Dimensions – 30.4×29.5×1.8mm, exact fit for the 40mm Oyster case.
| Parameter | Details |
|---|---|
| Compatible Models | Rolex GMT-Master II 126710, 116710 (40mm Oyster case) |
| Type | Generic aftermarket |
| Material | Synthetic sapphire |
| Shape | Flat with Cyclops and coronet etching |
| Length | 30.4 mm |
| Width | 29.5 mm |
| Thickness | 1.8 mm |
| Included | Waterproof gasket |
Rolex GMT-Master II 126710, 116710, and other 40mm Oyster case references
Replacement of damaged, deeply scratched, worn Cyclops, or aged AR coating
Restoring 100m water resistance and GMT aesthetic during service
1. Is this a genuine Rolex crystal?
No. It is a generic aftermarket replacement, not original, but matches the 126710 dimensions and includes a coronet etching and gasket.
2. Will the original 100m water resistance be maintained after installation?
Proper installation with the included new gasket can restore similar water resistance. A water resistance test is advised.
3. Is the laser-etched logo the same as genuine?
The logo is laser-etched and visually similar to the original but not Rolex factory-grade. It closely mimics the authentic look.
4. What should I pay attention to during installation?
Clean the case groove, place the new gasket, then the crystal. Align the Cyclops with the date window and the coronet at 6 o’clock. Press evenly with a crystal press. Professional installation is recommended.
5. Is the crystal prone to scratches?
Sapphire is highly scratch-resistant for daily wear, but avoid abrasive materials like sand.
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