Original Ray-Ban 3647N Replacement Lenses

Original Ray-Ban RB3647N replacement lenses

Bring your Ray-Ban RB3647N back to clear, comfortable vision without buying a new pair of sunglasses. These original Ray-Ban replacement lenses are a smart repair: up to 60% cheaper than replacing the whole frame, with free shipping. At ReplacementLenses.net, our qualified opticians work with official EssilorLuxottica parts every day in our own optical workshop in Granada.

Compatibility with the model

These lenses are made for the Ray-Ban RB3647N, model code 3647, size 51. They are intended for original Ray-Ban frames matching that exact model and size, keeping the round shape, Base 2 profile and precise fit.

They should not be used as a universal replacement for every round Ray-Ban frame or for replicas. Even when two frames look similar, small differences in the metal rim can affect lens retention and safety.

How to identify your model and size

Check the inside of the temple arm. You should find a reference such as RB 3647N and the size 51. That is the key information to confirm before ordering.

If the marking is worn, do not rely only on the visual shape of the sunglasses. Metal frames need the correct lens outline and diameter to close properly around the glass lens.

Main features

• Product type: original Ray-Ban lenses.
• Compatible model: RB3647N / 3647.
• Size: 51.
• Diameter: 54 mm.
• Shape: round.
• Lens material: glass.
• Lens curve: Base 2.
• Use: sunglasses.
• Audience: adult.
• Frame material reference: metal.
• UV400 protection: blocks 100% UVA/UVB rays.

Available colours

• 32 – Grey gradient – glass.
• 3E – Pink silver mirror gradient, semi mirror effect – glass.
• 3F – Blue gradient – glass.
• 48 – Black polarised – glass.
• 4O – Mirror blue flash gradient – glass.
• 57 – Brown polarised – glass.
• 58 – Green polarised – glass.
• 71 – Grey blue gradient – glass.
• A5 – Brown gradient – glass.
• G15 – Classic green – glass.
• R5 – Grey – glass.
• 7O – Copper light flash mirror – glass.
• 9U – Mirror grey flash gradient – glass.
• B1 – Dark grey – glass.
• 3M – Blue gradient – glass.
• 43 – Brown grey gradient – glass.

Material, protection and lens finishes

These RB3647N lenses are made from glass, chosen for its optical clarity and strong resistance to everyday scratches. The Base 2 curve preserves the flatter look associated with this model and avoids the visual distortion of generic curved alternatives.

Lens options include gradient, mirror, flash and polarised finishes where clearly stated in the colour name. Original Ray-Ban polarised versions carry the Ray-Ban P marking.

Why replace only the lenses

If your metal Ray-Ban frame is still in good condition, changing the lenses is the most efficient way to refresh your sunglasses. You save money, reduce waste and keep the frame that already fits your face.

Since 2018 we have repaired more than 600,000 glasses, processed over 400,000 orders and shipped to more than 50 countries. You can also explore our full range of original Ray-Ban lenses.

Authenticity and logo

As an official EssilorLuxottica distributor, we supply genuine Ray-Ban replacement lenses. Original Ray-Ban lenses include the Ray-Ban logo, and polarised versions feature the Ray-Ban P marking.

Each lens is checked by qualified opticians with a lensmeter before dispatch. Our Granada workshop also uses MEI Easy Fit Trend equipment for high-precision optical processes.

Frequently asked questions

Are these compatible with the classic round Ray-Ban models?
These lenses are for the Ray-Ban RB3647N, model 3647, size 51. A similar-looking round frame may have a different rim and should not be assumed compatible.

Can I use them if my RB3647N currently has prescription lenses?
If the frame is an original Ray-Ban RB3647N in size 51, it can be fitted with lenses made for that model. Always verify the temple code before ordering.

Are they glass or plastic?
The lenses are made of glass. This gives excellent clarity and better scratch resistance than many plastic alternatives.

Are polarised options available?
Yes, only the options listed as polarised: 48, 57 and 58. Original polarised Ray-Ban lenses include the Ray-Ban P marking.

How are they installed in the metal frame?
The metal rim is usually opened by loosening the small closing screw, then the lens is placed without forcing it. If you are not used to working on metal eyewear, an optician should do it.

Will the lenses arrive safely?
We pack optical components carefully for transport. If a delivery issue occurs, our customer care team will help you quickly.

How can I tell they are original?
They are genuine Ray-Ban lenses supplied through official EssilorLuxottica distribution. They include the Ray-Ban logo, and polarised versions are marked Ray-Ban P.