Zenith 107
£ 54 Original price was: £ 54.£ 29Current price is: £ 29.
A unisex square frame in black, crystal, navy or tort. Clear crystal finish.
- Size: 51-21-140 mm
- Frame: Full Rim
- Colours: Black, Crystal, Navy, Tort
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Zenith 107
Zenith 107 Prescription Glasses
Square frames have a confident, modern look that works almost anywhere. The Zenith 107 is a unisex full-rim square frame, sized 51-21-140, in Black, Crystal, Navy or Tort. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It belongs to the Zenith collection.
Choosing your Zenith 107 colour
Black. Black is a deep, solid black. It looks sharp at work and just as good with jeans at the weekend.
Crystal. The Crystal version is crystal clear. It blends in rather than stands out, which many people find easy to wear every day.
Navy. Navy is a deep, dark blue. It reads as smart and dark from a distance, with a little more personality up close.
Tort. In Tort, the frame is tortoiseshell. It warms up the face and sits nicely alongside camel, olive and cream.
If you are stuck between two, choose the one closest to the colours you wear most. You can always add a second pair later.
Shape and style
Square lenses add structure to round and oval faces and make features look more defined. A crystal front looks modern and light, and it goes with everything.
It is a bolder frame, so it makes a statement without trying too hard.
The Zenith 107 is a great everyday frame: smart enough for work and relaxed enough for the weekend.
Wearing it every day
Because it is unisex, it is easy to share the look across the household. Pick the colour that matches your wardrobe rather than worrying about who it is designed for.
Size and fit
| Brand | Zenith |
|---|---|
| Frame | Full Rim |
| Colours | Black, Crystal, Navy, Tort |
| Frame size | 51-21-140 mm (lens width, bridge, arm length) |
| Designed for | Unisex |
The 51mm lenses make this a medium frame that suits most faces. The 21mm bridge is wider than average, which suits a broader nose bridge. The 140mm arms are a standard length. Across the lenses and bridge it measures about 123mm.
Not sure about sizing? Compare these numbers with the ones on the inside arm of a pair that fits you well. A difference of two or three millimetres or less usually means a similar fit.
Lens options for the Zenith 107
Pick the lenses that match your prescription:
- Single vision: one prescription across the whole lens, for distance, reading or the computer.
- Varifocal: near, intermediate and distance in one lens, with no visible line.
- Bifocal: a separate reading segment in the lower part of the lens.
- Ready readers: simple magnification if you just need help with close work.
Want lighter lenses? A high-index lens is thinner than standard plastic. Pair it with an anti-reflective coating for less glare when you drive after dark.
Before you order
Make sure your prescription is in date; most adults in the UK are advised to have an eye test every two years, and your optician will tell you if you need one sooner. You will also need your PD, which tells our lab where to centre the lenses. With those two things ready, ordering takes a few minutes: choose your colour, pick your lenses, enter your details and you are done.
How your glasses are made
Pick your colour and lenses, add your prescription and PD, and our UK lab cuts your lenses and fits them into your Zenith 107. Every pair is checked before it leaves us.
A little care goes a long way
Rinse off any grit before you wipe, dry the lenses with a clean microfibre cloth, and take your glasses off with both hands so the arms stay aligned. See our lens care guide for more.
Questions we often get
What size is it?
It is size 51-21-140: 51mm lens width, 21mm bridge and 140mm arms, a medium fit.
Can I wear the Zenith 107 for driving?
Yes. Single vision or varifocal lenses work well for driving, and an anti-reflective coating helps cut glare from headlights at night.
Will it suit a wider nose bridge?
Yes. The 21mm bridge is wider than most frames.
Is it unisex?
Yes. It suits men and women.
What does crystal mean?
A clear, see-through finish.
Where are my lenses made?
In our UK optical lab. They are cut to your prescription, fitted into your frame and checked before they are sent out.
Still deciding on the Zenith 107? Browse more prescription glasses.
Lens prices
Lens types
| Lenses | Single Vision | Bifocal | Varifocal |
|---|---|---|---|
| 1.5 Index (standard) | FREE | £40 | £69 |
| Transitions | £50 | £90 | £119 |
| Sunglasses tint | £10 | £50 | £75 |
| Blue light filter | £30 | £70 | £99 |
Basic 1.5 Single Vision lenses with anti-reflection coating are included in the frame price.
Thinner lens upgrades
| Lens index | Single Vision | Bifocal | Varifocal |
|---|---|---|---|
| 1.6 + HMC | £30 | £70 | £95 |
| 1.67 + HMC | £50 | £90 | £119 |
| 1.74 + HMC | £70 | – | £135 |
Higher index lenses are thinner and lighter, and are worth it for stronger prescriptions. All include an HMC coating.
Frame details & size guide
Specifications
| Color | Black, Crystal, Navy, Tort |
|---|---|
| Brand | Zenith |
| Bridge Size | 21 |
| Eye Size | 51 |
| Temple Length | 140 |
| Type | Optical |
| Rim | Full Rim |
| Wearer | Unisex |
How to read frame sizes
The three numbers (for example 48-20-140) are the lens width, the bridge and the arm length in millimetres. Compare them with a pair you already own.

Delivery, returns & what is included
Delivery
- Single Vision: 5-7 working days
- Bifocal: 7-10 working days
- Varifocal: 7-10 working days
- Dispatched within 48 hours by tracked Royal Mail service
Delivery is free. Your estimate for your country is shown at checkout.
Returns & exchanges
Free 30-day returns or exchanges. If your glasses are not right for you, we will make it right.
What is included
- Anti-reflection lenses included
- Case and microfibre cloth
- Lenses made in our UK optical lab
- All frames CE marked
- Worldwide delivery
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