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Certified EssilorLuxottica distributor An international benchmark for Ray-Ban and Oakley replacement parts Over 600,000 glasses restored in 50+ countries New High-precision custom engraving on your lenses 3-year warranty on all replacement parts Compatible Quality and savings to renew your glasses Certified EssilorLuxottica distributor An international benchmark for Ray-Ban and Oakley replacement parts Over 600,000 glasses restored in 50+ countries New High-precision custom engraving on your lenses 3-year warranty on all replacement parts Compatible Quality and savings to renew your glasses

All Ray-Ban replacement lenses →All original Ray-Ban lenses →

Ray-Ban

Original Ray-Ban RB3690 lenses

Bring your Ray-Ban RB3690 glasses back to life with a pair of original lenses, made for this model and bearing the original logo.

Complete pair Glass lens Original logo
$ 60.59 from · price per pair
Select the lens sizeChoose your lens size
Choose the color and coatingChoose a color

Material: Mineral glass

Optional
Your configurationOriginal lenses RB3690
$ 60.59 per pair
Model
Ray-Ban RB3690
Material
Mineral glass
Product
Original pair · with Ray-Ban logo
Choose the options to see availability
Quantity: 1 Total $ 60.59
Check the model and lens size. 51 and 54 mm lenses are not interchangeable. This pair is only for the Ray-Ban RB3690.
Before you choose

Find the right lens size for your RB3690

The inscription on the inside of the arm lets you confirm the model and exact lens measurement without visually comparing frames.

Inscription on the inside of the arm: RB3690 ··· 51□·· ···Example for guidance only. The position and order of the codes may vary depending on the frame.

How to read the inscription

In an inscription such as RB3690 ··· 51□·· ···, each part has a purpose:

RB3690ModelMust match this product.
···Frame colorIdentifies the finish of the frame front.
51Lens sizeThis is the size you need to select.
··BridgeThis is not the lens size.

This reference comes in 2 sizes. Find the number right before the □ symbol on your arm and choose that same lens size:

  • 51□ → 51 mm
  • 54□ → 54 mm

The number after the □ is the bridge: it isn't used to choose the lens. Can't read it? Measure your lens from side to side at its widest point; that measurement in millimeters matches the lens size.

Product and model

Ray-Ban RB3690

The RB3690 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.

Reference
RB3690
Available lens sizes
51 and 54 mm
Identification
Original logo
MaterialGlass lens
CurvatureBase 6
Packaging1 pair
ManufacturingOriginal Ray-Ban
Product contents

What you'll receive with your order

1Original right lens with Ray-Ban logo
2Original left lens with RB engraving
3Selected color, coating and lens size
CristalesRepuesto technician checking a lens in the Granada workshop
Specialists since 2018Original product with specialist support
Why choose ReplacementLenses

Origin, compatibility and contents explained before you buy

We work with original replacement parts and help you confirm the model and lens size to reduce mistakes before we prepare your order.

EssilorLuxottica Ray-Ban Certified distributor
since 2018
Certified distributor

ReplacementLenses has been a certified EssilorLuxottica distributor since 2018.

Verifiable original

Ray-Ban pair with the original markings for the variant.

Guided compatibility

We explain where to find RB3690 and how to tell the 51 and 54 mm lens sizes apart.

3-year warranty

Coverage against manufacturing defects and after-sales support.

Installation guide

How to replace the lenses on your RB3690

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.

Guide specific to the RB3690Step-by-step installation
ReplacementLenses · YouTube
More information

Everything about this replacement part for the Ray-Ban RB3690

Original Ray-Ban RB3690 replacement lenses

Bring your Ray-Ban RB3690 back to life without buying a new pair of sunglasses. These original Ray-Ban replacement lenses preserve the look, optical quality and sun protection of your frame, with free shipping on qualifying orders and savings compared with replacing the full sunglasses.

Model compatibility

These lenses are made specifically for the Ray-Ban RB3690. Choose the correct lens size for your frame: even a small difference in millimetres can prevent a proper fit or leave the lens incorrectly seated.

How to identify your model and size

Check the inside of the temple arm for a reference such as “RB3690 54” or “RB3690 51”. RB3690 confirms the model, while the two-digit number is the lens size you need to order.

Main features

  • Brand: Ray-Ban
  • Compatible model: RB3690
  • Product type: original
  • Lens material: crystal glass
  • Shape: Pillow
  • Lens curve: Base 6
  • Use: sunglasses
  • Audience: adult
  • Available diameters: 54mm and 58mm

Available colours

  • 31 – Green – Crystal
  • B1 – Dark grey – Crystal
  • AN – Brown polarized – Crystal
  • K8 – Polar dark grey – Crystal

Material, protection and lens options

These lenses are made from crystal glass, a premium material valued for visual clarity and scratch resistance. They provide UV400 protection, blocking 100% of UVA/UVB rays. AN and K8 are polarized lens options, ideal if you want to reduce glare when driving, near water or on bright reflective surfaces.

Why replace only the lenses

If your Ray-Ban RB3690 frame is still in good condition, replacing only the lenses is the smart choice. You restore the optical performance and appearance of your sunglasses while keeping a premium metal frame that already fits you perfectly.

Authenticity and logo

We are an official EssilorLuxottica distributor. As original Ray-Ban lenses, they include the Ray-Ban logo; polarized versions feature “Ray-Ban P”. In our optical workshop in Granada, qualified opticians check every lens with a lensmeter before dispatch.

Frequently asked questions

Are these lenses compatible with other Ray-Ban models? No. They are designed for the Ray-Ban RB3690 and must match the correct size of that frame.

How do I know whether I need size 54 or 51? Look inside the temple arm. The number printed after RB3690 is the lens size to select.

Can I upgrade to polarized lenses? Yes, if you select a polarized option available for RB3690, such as AN or K8. Fit depends on the frame size, not on whether the lens is polarized.

Are they glass or plastic lenses? These lenses are crystal glass. That gives a visual feel very close to the original Ray-Ban lens.

Do they protect against UV? Yes. They include UV400 protection, blocking 100% of UVA/UVB rays.

Can I install them at home? The RB3690 is a metal frame, usually opened with a small precision screw. If you are not used to handling eyewear, visit an optician to avoid scratching the lens or stressing the frame.

Original Ray-Ban RB3690 Replacement Lenses | Official Parts
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We answer your questions

FAQ

Is the price for one lens or for the pair?

The price is for a complete pair: original Ray-Ban right and left lenses.

Can I choose a different color from the original?

Yes. You can choose another available variant as long as you select the RB3690 model and the exact lens size of your frame.

How do I know if I need 51 or 54 mm?

Look for the reference on the inside of the arm. In an inscription such as RB3690 ··· 51□··, the number 51 is the lens size.

Are all colors available in all lens sizes?

Not necessarily. Final availability depends on the lens size and the color and coating combination: when you choose a lens size, you'll only see the colors that exist for it.

Do the polarized versions have a logo?

Yes. On polarized variants, the marking may appear as Ray-Ban P, in addition to the discreet RB engraving.

Will they fit another similar model?

No. Shape doesn't determine compatibility: these lenses are only for reference RB3690 and the lens size you choose.

Search by reference

Find your glasses' reference

Look on the inside of one of the temple arms. That's where you'll find the details needed to find the right replacement part.

Inside of a Ray-Ban temple arm showing reference RB2140, color 901, lens size 50, bridge 22 and arm length 150
RB2140Frame model
901Color code
50Lens size
22Bridge width
150Arm length
●

To find lenses: the model and lens size are usually enough. For arms: we also recommend checking the color and length.