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Ray-Ban RX6421 Overview
Colors
2553 Brushed Gunmetal
2890 Black & Gold
2904 Black
2973 Beige on Copper
2997 Black Silver
3004 Grey on Silver
Size
Lens width
Bridge
Temple
Lens height
52
18
140
39
54
18
145
41
56
18
150
43
All measurements in millimetres.
Frame details
Brand
Ray-Ban
Model
RB6421
Shape
Square
Material
Metal
Rim
Full Rim
Hinges
Regular
Lens compatibility
Friendly
Collection
Eyeglasses
Gender
Unisex
About the Ray-Ban RB6421
The Ray-Ban RB6421 is a square-shaped metal frame with a full rim design. This unisex frame works for those who prefer the structure of a square shape and the durability of metal construction.
Available in three sizes: 52-18-140 (lens height 39 mm), 54-18-145 (lens height 41 mm), and 56-18-150 (lens height 43 mm). The lens width of 52mm to 56mm is wide, while the 18mm bridge is average for frames of this lens width. To compare with your current glasses, check the three numbers printed on the inside of the temple.
Order the frame on its own or add prescription lenses made in our U.S. lab: single vision, OmniLux® NAL® lenses or progressives, and prescription sunglasses with Transitions®, tinted or polarized lenses. Free U.S. shipping on every order with prescription lenses. Ray-Ban case included; one-year warranty against manufacturer's defects.
Frequently asked questions
Which size should I choose?
Check the first number on the temple of your current glasses and take the closest one: 52, 54 or 56.
Is the RB6421 good for progressive lenses?
The lens height is 39 mm in the 52, 41 mm in the 54 and 43 mm in the 56. That works with progressive, OmniLux® NAL® and iLux™ lenses.
What is the difference between RX6421 and RB6421?
Nothing in the frame. One is the engraved code and the other is Luxottica's catalogue code for the prescription version. We list both so it matches your optician's paperwork.
If you already own a pair of glasses, you'll find numbers engraved on the inside of the eyewear temple. These numbers indicate the following:
LENSWIDTH (A)—
BRIDGEWIDTH (DBL)—
TEMPLELENGTH—
LENSHEIGHT (B)—
The first number is the lens width followed by the bridge width. The third number represents the temple length, or the measurement of the arms of your frame. In some cases there may be a fourth number that indicates the lens height. Measurements in mm.
Ray-Ban RX6421
Outstanding customer service and outstanding production of the products. I purchased 2 pair of Rayban prescription glasses.