• Cut from a single sheet of premium Japanese acetate ensuring flexibility and durability
• 6 weeks and over 200 manual processes to handcraft a single frame
• Premium acetate with enhanced malleability to ensure individual fit and comfort.
• Gently tumbled in a wood barrel with resin chips and oil prior to 3-stage hand polishing
• Japanese 7-barrel hinge finished with blue coated screws to strengthen frame structure
• Three stringent quality control checks prior to approval and shipping
• Available with a selection of extremely high grade, coated Japanese lenses available at cost of manufacture
• Frames are shot with white light shone, so some frames, and especially lenses can look lighter than in real life
• Do not expose to high temperature, excess moisture - and to use a dry cloth to remove any moisture to avoid damage
• Clean lenses with luke warm water with a drop of neutral detergent and dry gently

The Caramel Walnut colourway wraps the 51 in a warm, layered blend of caramel and rich walnut brown — an inviting, earthy tone that softens the bold curved silhouette and shifts subtly in different light. It is the kind of colour that looks like it has a story, somewhere between a well-worn leather journal and a long afternoon in a Kyoto café.

"And so you touch this limit, something happens and you can suddenly go a little bit further. With your mind power, your determination, your instinct and your experience as well, you can fly very high" — Ayrton Senna

The larger sibling of our best-selling Ayrton, the 51 features the kashime hinge — piercing through front and sides as both a functional upgrade and a visual signature that sets it apart from the original. Each frame is cut from a single sheet of premium Japanese acetate by Takiron Rowland and handcrafted in Sabae, Japan by Takumi master craftsmen across six weeks and more than 200 manual processes. Before leaving the workshop, the acetate is gently tumbled in a wood barrel with resin chips and oil, then taken through a three-stage hand polish — the kind of obsessive finishing that makes these frames feel like nothing else you have ever worn. Ships to the United Kingdom. Free returns.