How to read the inscription
In an inscription such as RB3686 ··· 57□·· ···, each part has a purpose:
All Ray-Ban replacement lenses →All original Ray-Ban lenses →
Bring your Ray-Ban RB3686 glasses back to life with a pair of original lenses, made for this 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 RB3686 ··· 57□·· ···, each part has a purpose:
The RB3686 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 RB3686 and how to tell the 57 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.
If your Ray-Ban RB3686 frame is still in good condition but the lenses are scratched, replacing only the lenses is the smart way to get your sunglasses back without buying a new pair. These original Ray-Ban lenses for RB3686 keep the authentic fit, UV400 protection and optical feel, with free shipping on qualifying orders and savings compared with new sunglasses.
These Ray-Ban replacement lenses are made for the Ray-Ban RB3686 model in size 57. Always check the reference printed inside the temple, because similar Ray-Ban models may look close but use a different lens shape or size.
As original Ray-Ban lenses, they are designed for the exact geometry of the genuine RB3686 frame. If your frame is a replica, fit cannot be guaranteed because the inner groove and lens curve may differ.
Look inside the temple for a code such as RB3686 57□19. RB3686 is the model number, while 57 is the lens size, meaning the width of each lens in millimetres. It is not the total width of the sunglasses.
Before ordering, make sure your frame shows RB3686 and size 57. If you are unsure, send us clear photos of the inside temple and the front of the frame.
These RB3686 lenses are made of glass, with a Base 6 curve and UV400 protection, blocking 100% of UVA and UVB rays. Depending on the selected colour, you can choose classic, gradient, polarised and polar mirror lens options.
Polarised lens options reduce disturbing glare when driving or near reflective surfaces. Original Ray-Ban polarised lenses carry the Ray-Ban P logo.
The metal frame of the RB3686 is built to last. Replacing the lenses is more economical, more sustainable and lets you keep the frame that already fits your face comfortably.
At ReplacementLenses.net we work daily with original Ray-Ban lenses. Since 2018, we have repaired more than 600,000 glasses and shipped over 400,000 orders to more than 50 countries.
We are an official EssilorLuxottica distributor. These original Ray-Ban lenses include the Ray-Ban logo, and polarised options include Ray-Ban P. In our own workshop in Granada, qualified opticians verify lenses using a lensmeter before dispatch.
They fit Ray-Ban RB3686 frames in size 57. Please check the temple code before ordering to avoid confusion with similar models.
The model number is printed inside the temple. If it shows another code, do not assume compatibility based only on appearance.
Yes. They are original Ray-Ban lenses supplied through the official EssilorLuxottica channel and include the Ray-Ban logo.
Yes. The available polarised options are K8 – polar dark grey, P1 – polar dark green and 4L – polar mirror blue, all in glass.
For the RB3686, replacing both lenses keeps colour, filtration and visual balance symmetrical. A new lens next to a used one may show a visible tone difference.
The RB3686 is a metal frame, so the rim screw is normally loosened before fitting the lens. If you are not used to this type of frame, we recommend professional installation.

Ratings posted by customers for the Ray-Ban RB3686. We show the most recent ones.
“¡mi visión nunca ha sido mejor!"”
Published reviewThe 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 RB3686 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 RB3686 and the lens size you choose.