How to read the inscription
In an inscription such as RB3674M ··· 50□·· ···, each part has a purpose:
All Ray-Ban replacement lenses →All original Ray-Ban lenses →
Bring your Ferrari back to life with a pair of original Ray-Ban lenses, made for the RB3674M model and bearing the original logo.
The inscription on the inside of the arm lets you confirm the model and exact lens measurement without visually comparing frames.
In an inscription such as RB3674M ··· 50□·· ···, each part has a purpose:
The RB3674M has a metal frame. This pair of original lenses keeps the geometry, beveling and fit designed for the model; you just need to confirm the exact reference and lens size.
We work with original replacement parts and help you confirm the model and lens size to reduce mistakes before we prepare your order.
ReplacementLenses has been a certified EssilorLuxottica distributor since 2018.
Ray-Ban pair with the original markings for the variant.
We explain where to find RB3674M and how to tell the 50 mm lens sizes apart.
Coverage against manufacturing defects and after-sales support.
The metal frame uses a rim closed with a screw. Work on a protected surface and avoid forcing the lens or bending the frame front.
These original Ray-Ban RB3674M replacement lenses are the smart way to bring your sunglasses back to life without buying a new frame. You keep your Ferrari collection Ray-Ban frame, restore clear vision and sun protection, and can save money compared with replacing the complete sunglasses. Free shipping on qualifying orders.
This lens replacement is made for Ray-Ban RB3674M, model 3674M, size 50. Please check the inside of your temple before ordering, especially if your sunglasses are a different Ray-Ban 3674 reference.
We do not recommend fitting these lenses into replicas, copies or frames with a different model code. The fit depends on the exact lens shape, rim design, size and Base 6 curvature.
Open the temples and look for the printed or engraved reference on the inner side. You should find RB3674M or 3674M and size 50. That size is the lens calibre for this replacement.
If the marking is worn, confirm the model code before purchasing. A small difference in the Ray-Ban reference can mean a different lens shape.
The lenses are made of polycarbonate, a lightweight and resistant material suitable for everyday sunglasses. They provide UV400 protection, blocking 100% of UVA and UVB rays.
The available lens options include gradient, flash, Chromance and one polarized option: J0 – Blue gradient mirror Chromance polarized. If you want glare reduction for driving or bright outdoor conditions, choose the option specifically marked as polarized.
If your Ray-Ban Ferrari frame is still in good condition, replacing only the lenses makes perfect sense. You recover clarity, comfort and protection while keeping the premium frame that already fits your face.
It is also a more sustainable and cost-effective choice. You can explore more original Ray-Ban lenses in our Ray-Ban category.
This is an original Ray-Ban product supplied through the official EssilorLuxottica channel. Original Ray-Ban lenses include the Ray-Ban logo; polarized versions may show Ray-Ban P.
Our own optical workshop in Granada uses a MEI Easy Fit Trend machine, and qualified opticians verify lenses with a lensmeter. Since 2018, we have handled over 400,000 orders and repaired more than 600,000 sunglasses in over 50 countries.
Are these lenses only for Ray-Ban RB3674M?
Yes. These original Ray-Ban replacement lenses are made for RB3674M / 3674M in size 50, so the model code must match.
Will they fit a Ray-Ban 3674 without the M?
Order this item only if your frame is marked RB3674M or 3674M. A small model-code difference can change the lens geometry.
How do I check the correct size?
Look inside the temple for the model and size. This product is size 50, so contact us before ordering if your frame shows another size.
Do they include the Ray-Ban logo?
Yes. As original Ray-Ban lenses, they include the Ray-Ban logo, and the polarized option may be marked Ray-Ban P.
Are they mineral glass?
No. According to the product specifications, these lenses are polycarbonate.
Do they have UV protection?
Yes. They include UV400 protection, blocking 100% of UVA and UVB rays.
Can I install them myself?
It depends on your experience and the condition of the RB3674M frame. If the lens resists or you are unsure, have them fitted by an optician.

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The price is for a complete pair: original Ray-Ban right and left lenses.
Yes. You can choose another available variant as long as you select the RB3674M model and the exact lens size of your frame.
Yes. On polarized variants, the marking may appear as Ray-Ban P, in addition to the discreet RB engraving.
No. Shape doesn't determine compatibility: these lenses are only for reference RB3674M and the lens size you choose.