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An independent guide to James Oro eyewear and jewelry, by FrameNotes · not the official store
Guides · Sizing

James Oro Frame Sizes: Lens Width, Frame Width and Who Each Model Fits

By the FrameNotes Review Desk
Updated October 7, 2026 · prices from the live James Oro catalog

James Oro publishes four measurements on every frame page, which is more than most online eyewear brands give you, but the store's product photos are shot at one scale and tell you nothing about how a 130 mm Opus and a 156 mm Nighthawk will sit on the same face. This guide explains the four numbers, gives a face-width table, and groups every current model by front width.

The four numbers

A, lens width is the horizontal width of one lens; across the catalog it runs from 40 mm on the smallest rimless lenses to around 60 mm on the oversized aviators, with a median of 54 mm. B, bridge width is the gap between the lenses, 16–24 mm here. C, temple length is the arm, 140–150 mm on almost every model. D, front frame width is the total width across the front including the frame material, and it is the number that decides whether a frame looks right on you.

Front width is what we show on every product page and card. The catalog runs from 130 mm (Opus) to 156 mm (Nighthawk, Godfather, Titan XL and Serpent Authentic XL), with a quarter of the models at 143 mm or under, a median of 147.5 mm, and a quarter at 149 mm or over.

Rough face-width guide

Your face width (temple to temple)Comfortable front widthJames Oro models to look at
Under 130 mm (narrow)130–140 mmOpus, Coffre, Alchemist, Architect, Siren Lust, Lala, Authentic II, Javelin, Signature
130–140 mm (average)140–148 mmMost of the range: Titan, Dune, Hustler, Icon, Grail, Serpent, Hydra, Amour, Caliber
140–150 mm (wide)148–153 mmCaliber, Agent, Atlas, Skymaster, Cruzer, Vantage, Capo, Hunnids, Legacy Dune
Over 150 mm (very wide)153 mm and upTitan XL, Dune XL, Authentic II XL, Serpent Authentic XL, Nighthawk, Godfather, Windshield

Measure across your face at the temples with a ruler, or measure a pair of sunglasses that already fits well across the front and use that number. As a rule, the front of the frame should be about as wide as your face, give or take 3–4 mm; a frame that is clearly wider will slide, and one that is narrower will press at the temples and look small.

Which models run narrow, average or wide

Front widthModels in stockPrice from
140 mm and under (narrow)60$99
141–149 mm (average)266$55
150 mm and up (wide)49$55

The XL versions

Four families come in an XL size: the Titan (148 → 155.7 mm), Dune (148 → 155.1 mm), Authentic II (140 → 150.8 mm) and the Serpent and Iced Authentic (142 → 156 mm), plus an Opus XL. The shape does not change; the front is simply cut wider and the lenses are larger. If you are between the average and wide rows above, the standard size is usually right; if your face is clearly over 150 mm, go XL, since the standard Titan and Dune will look small and pinch at the hinges.

Narrow: 140 mm and under

The rimless Opus (130–138.5 mm) and the cat-eye Coffre (132 mm) are the smallest frames in the range, followed by the round Alchemist and Architect at 135 mm, the heart-lens Siren Lust at 136 mm and the slim Lala at 136.5 mm. The signature Authentic II, the Javelin and the Signature all sit at exactly 140 mm, which is why they suit smaller faces better than the acetate models do.

Average: 141–149 mm

Most of the catalog lives here, including the Titan and Dune at 148 mm, the Caliber at 149.5 mm, the Hustler at 144 mm, the Icon at 143 mm and the Grail at 145 mm. Note that an 8 mm acetate frame at 148 mm looks wider on the face than a rimless frame at the same width, because the frame material adds visual bulk at the edges.

Wide: 150 mm and up

The oversized aviators (Nighthawk at 156.1 mm, Skymaster at 149.5 mm), the sport frames (Windshield 153 mm, Vantage 152 mm), the Godfather at 156 mm and all the XL versions. These are the right choice for faces over 145 mm; on an average face they will overhang at the temples.

Bottom line

Decide on front width first, then shape, then colorway. If you are between sizes, go narrower on an acetate frame (the thick rim adds visual width) and wider on a rimless one (the lenses look smaller without a rim). Every product page on this site lists all four measurements from the store listing, and the US return window gives you 14 days to check the fit on full-price frames.

Browse all James Oro sizes →