Sir Hamish vs CALISTO Eyeglasses: Picking Your Frame Shape
By Gazal Eyecare Shop | Published: 2026-11-01
Category: Buying Guides
Compare the rectangular Sir Hamish and aviator-inspired CALISTO eyeglasses. Use our decision rules to match frame shape to your face and daily wear.
Quick answer
Choose the Sir Hamish if you want a structured, rectangular frame that adds definition to softer face shapes. Choose the CALISTO if you prefer a lighter aviator look with a double-rim design that flatters angular or oval faces.
How frame shape changes your look
The Sir Hamish is a rectangular frame with an architectural silhouette, so it brings strong horizontal lines and a bold, structured feel. That makes it a natural pick when you want glasses to add contrast to a rounder or softer face.
The CALISTO takes the classic aviator shape and updates it with a double-rim design in hand-finished brushed titanium. Its curved lower rim and brow bar soften angular features and keep the overall look lighter than a thick rectangular frame.
Materials and everyday wear
The Sir Hamish is handcrafted from acetate with titanium wirecores, hinges, and screws. Acetate gives it a substantial, sculpted presence, while the titanium core adds strength without making the frame feel purely industrial.
The CALISTO is made in Japan from Japanese acetate and titanium, with a brushed titanium double rim and an enamel-inlaid brow bar. Titanium keeps the frame light, and the enamel detail adds a subtle point of color. If you prefer a frame that feels barely there, the CALISTO is the lighter option on paper.
When the shape might not suit you
A rectangular frame like the Sir Hamish can feel too wide or heavy on a very angular face with a strong jaw, because it repeats those straight lines. In that case, the CALISTO’s curved aviator shape offers more balance.
Conversely, if you have a long, narrow face, the CALISTO’s aviator drop may emphasize length. The Sir Hamish’s horizontal rectangle can help break up that vertical line instead.
Decision rules for choosing between Sir Hamish and CALISTO
- If your face is round or soft: Pick the Sir Hamish. Its rectangular shape adds angles and definition that contrast with curved features. Check that the frame width matches your face width; a rectangle that’s too narrow can pinch.
- If your face is angular or square: Pick the CALISTO. The aviator curve and double rim soften a strong jawline and broad forehead. Make sure the lower rim doesn’t rest on your cheeks when you smile.
- If you want a lightweight frame: Lean toward the CALISTO. Its titanium construction is designed to reduce weight, while the Sir Hamish’s acetate body is more substantial. If you’re used to very light frames, try the Sir Hamish on first to see if the acetate weight feels comfortable.
- If you prefer a bold, architectural look: Choose the Sir Hamish. Its rectangular silhouette and acetate build make a stronger style statement. Pair it with simpler clothing if you want the glasses to stand out.
- If you want a classic shape with a modern detail: Choose the CALISTO. The aviator shape is familiar, but the double rim and enamel brow bar give it a contemporary edge. Consider whether the enamel accent color works with your wardrobe.
Product facts
- Sir Hamish: Rectangular acetate frame with titanium wirecores, hinges, and screws. The acetate build gives the frame a bold, structured look that holds its shape well for daily wear.
Sir Hamish - CALISTO: Japanese acetate and titanium frame with a brushed titanium double rim and enamel-inlaid brow bar. Titanium keeps the frame light, while the double rim adds visual interest without the bulk of a thick acetate rectangle.
CALISTO
Who each frame suits
Best for
- People with round or oval faces who want to add structure
- Anyone who prefers a bold, rectangular acetate frame
- Wearers who like a substantial frame with titanium reinforcement
Not for
- Very angular faces that may find the rectangle too repetitive
- People who want the lightest possible frame
- Those who prefer a curved aviator silhouette
