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Ray-Ban Mega Wayfarer RB0840S 902/1A Havana Sunglasses
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Part of Ray-Ban's Mega Wayfarer line, the RB0840S is a square sunglass in colour 902/1A — havana propionate with a polished finish and matching temples. It is a full rim frame on a high bridge fit, built to be worn daily rather than saved for occasions. Browse the rest of our Ray-Ban range, or see how it sits against the other square sunglasses we stock.
Who the RB0840S suits
The RB0840S is a medium-sized frame — 51mm lens, propionate temples, regular width across the front. Ray-Ban lists it as suiting oval and round face shapes. It is listed as unisex, and sits with the rest of our unisex sunglasses. The only fit test worth trusting is a direct one: hold a pair you already wear beside this frame and compare the numbers stamped inside the temple. If the lens width is close and the bridge matches, the fit will be close too.
Lens and UV protection
The RB0840S ships with light violet glass lenses, a solid tint that darkens evenly across the whole lens. At 27.1% light transmission it is well suited to daytime driving and general road use. Every lens blocks 100% of UVA and UVB — full UV400 protection.
Size and fit
The size code is 51–21–145: a 51mm lens, a 21mm bridge and 145mm temples. Those three numbers are printed on the inside of the left temple arm on every Ray-Ban, including whatever you are wearing now. Measure the lens width on a pair you already own and compare it against this frame's 51mm. Full measurements are in the Product Details panel.
Buying from Taneja Opticals
- Sourced directly from Ray-Ban — 100% authentic
- Prescription sunglass lenses can be added when you order. Not sure what you need? message us on WhatsApp and we'll help you choose.
- Dispatched within 24 hours — 2–4 working days across India, next-day within Dehradun
- 7-day exchange on unworn frames in original packaging
- EMI available at checkout
- Try it on at any of our Dehradun boutiques, or order online with delivery across India
Ray-Ban RB0840S — common questions
Does the RB0840S come with lenses?
Yes. It arrives with Ray-Ban's own light violet sun lenses fitted and ready to wear straight out of the box. If you'd rather have your prescription in them, we can do that too — message us on WhatsApp and our team will talk you through the options.
What size is the RB0840S?
51–21–145, which is a 51mm lens, 21mm bridge and 145mm temples — a medium-sized frame. Check the inside of the temple arm on a pair you already own; the same three numbers are printed there.
Is the RB0840S polarised?
No. These lenses are tinted and carry full UV400 protection, but they are not polarised — and a tinted lens is not the same thing as a polarised one. If glare off road and water is your main concern, message us on WhatsApp and we'll point you at the polarised models we stock.
Taneja Opticals has been a trusted name in the eyewear industry since 1994. Every pair is sourced directly from the brand, straight to you.
- Title
- Ray-Ban Mega Wayfarer RB0840S 902/1A Havana Sunglasses
- Model no.
- RB0840S
- Frame shape
- Square, Wayfarer
- Frame color
- Havana
- Frame material
- Propionate
- Temple color
- Havana
- Lens color
- Light Violet
- Lens material
- Crystal
- UV protection
- UV400
- Polarization
- No
- Style
- Unisex
- Suitable for
- Driving, Road use
- Size
- 51-21-145
Not sure which lens fits your prescription? Here's a quick breakdown.
The right choice if you need correction for one distance only, whether that's reading, distance, or everyday wear. Most common, most straightforward.
No prescription needed. Choose this if you just want the frame for its look, or want a blue-light filter for screen use without any correction.
One lens, seamless correction from near to far, with no visible line between zones. Ideal if you already wear progressives, or want to stop switching glasses through the day.
Delivery
Frames and sunglasses are dispatched within 1-2 business days and reach you in 3-5 business days, anywhere in India. If you've added prescription lenses, please allow 7-14 days — each lens is custom made to your prescription. Shipping is free across India, with no minimum order.
Free 7-Day Returns
Changed your mind? Frame orders can be returned or exchanged within 7 days of delivery, and return shipping is free — by courier or at either of our Dehradun boutiques. The item needs to be unused, with its original tags and packaging intact; once it passes inspection, your refund is issued. As prescription lenses are made specifically for you, orders with fitted lenses are final sale.
Payment
We've made payment flexible too — pay by UPI, credit or debit card, net-banking, EMI, or Cash on Delivery.
Lifetime Aftercare
Our relationship with you doesn't end at delivery. Visit any of our boutiques anytime for free frame alignment, screw tightening, and fit checks — the same care we've been giving for three decades. Can't make it in? Reach out to our customer support and we'll help however we can.
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Find your size
Eyewear sizes are three numbers — lens width, bridge and temple — usually printed inside the temple arm of your current glasses.
- 1Take a pair of glasses that already fit you well.
- 2Look inside the temple arm for numbers like 52□18-140 — that's lens width, bridge, temple.
- 3Match the lens width below, or pick the frame closest to yours.
| Fit | Lens width | Best for |
|---|---|---|
| Narrow | ≤ 48 mm | Slim / smaller faces |
| Medium | 49–53 mm | Most faces |
| Wide | ≥ 54 mm | Broader faces |
| SPH | CYL | Axis | ADD | |
|---|---|---|---|---|
| R | ||||
| L |