Hamilton · Khaki Aviation
Strap for Hamilton Khaki Aviation H77612533
The Khaki Aviation ETO takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
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- Ships in 1–3 working days
- Worldwide shipping
- 30-day returns
- 12-month warranty on manufacturing defects
- Hand-stitched in Milan
Lug width

Your watch with our straps









Calf, Orange
Grand Cavalier Leather Strap Orange
€120
★ 4.9 · 12
1 / 64
Real photos of the strap and the case. No generated images.
What length do I need?
Measure your wrist with a tailor's tape or a piece of string, comfortably snug.
| Wrist circumference | Length (long side / short side) |
|---|---|
| 15.0–16.4 cm | 120 / 70 mm |
| 16.5–17.8 cm | 125 / 75 mm |
| 17.9–19.0 cm | 130 / 80 mm |
| 19.1–20.3 cm | 135 / 85 mm |
| 20.4–21.6 cm | 140 / 85 mm |
| 21.7–22.9 cm | 145 / 90 mm |
The ready-to-wear strap is 115 × 75 mm. For a smaller or larger wrist I make it in the right length: order your length.
What I'm asked about the Hamilton Khaki Aviation H77612533
What strap size does the Hamilton Khaki Aviation H77612533 take?
The Hamilton Khaki Aviation H77612533 needs 21 mm between the lugs, usually 18 mm at the buckle. It's the size I've been fitting on it for years.
Can the strap on the Hamilton Khaki Aviation H77612533 be changed?
Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.
Can I put a leather strap on the Hamilton Khaki Aviation H77612533?
Yes, in 21 mm leather. On a 42 mm case a calf strap works every day; if you want something more, alligator.
Which strap do you recommend for the Hamilton Khaki Aviation H77612533?
A 21 mm calf strap, for every day. You'll find it ready in the 21 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More Khaki Aviation
- Hamilton Khaki Aviation H600646111120 mm
- Khaki Aviation Pilot Silver20 mm
- Khaki Aviation Pilot Grey20 mm
- Khaki Aviation Pilot PVD Gold20 mm
- Khaki Pilot Day Date PVD / Black20 mm
- Khaki Pilot Day Date Quartz 42 Stainl;ess Steel / Black / Bracelet20 mm
- Khaki Pilot Day Date Quartz 42 Stainless Steel / Black20 mm
- Khaki Aviation Pilot Day Date Quartz Silver20 mm
All Khaki Aviation → Hamilton families →
Every Khaki Aviation reference with its measured lug width, on watchbands.ai →
More Hamilton in 21 mm
For changing the strap
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
The atelier's website: casatimilano.com
