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This is a generic sapphire crystal designed for the Rolex Sea-Dweller 126600 reference, manufactured to replace the original Rolex B25-307 crystal part number.
Featuring a flat profile with a Cyclops magnifier over the date window, this aftermarket crystal is made from synthetic sapphire, offering exceptional scratch resistance (Mohs hardness 9) and optical clarity.
The original Sea-Dweller 126600, introduced in 2017 for the 50th anniversary, features a 43mm Oystersteel case, 1,220m water resistance, and is powered by the Caliber 3235 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.
Flat Profile – Classic flat crystal, perfect fit for the 43mm Oyster case of the Sea-Dweller 126600.
Precise Specifications – Manufactured to original B25-307 specifications for direct replacement.
Generic Aftermarket – Non-original but dimensionally and visually matched to OEM.
| Parameter | Details |
|---|---|
| Compatible Model | Rolex Sea-Dweller 126600 (43mm case) |
| Type | Generic aftermarket |
| Material | Synthetic sapphire |
| Shape | Flat with Cyclops |
| OEM Part Number | B25-307 |
| Function | Date magnification, water sealing |
1. Is this a genuine Rolex crystal?
No. It is a generic aftermarket replacement, not original, but manufactured to B25-307 specifications.
2. Will the original 1220m water resistance be maintained after installation?
Proper installation with a new gasket can restore similar water resistance. A pressure test is advised. (Gasket not included)
3. What should I pay attention to during installation?
Clean the case groove, use a new gasket, align the Cyclops with the date window. Press evenly with a crystal press. Professional installation is recommended.
4. What is the magnification of the Cyclops?
Approximately 2.5x, consistent with the original.
5. Does this crystal fit other Sea-Dweller references like 116600?
No. The 126600 has a 43mm case; 116600 is 40mm – different crystal size.
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