Hamilton · Khaki Aviation

Strap for Khaki X-Copter

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
ReferenceH76616133
FamilyKhaki Aviation
MovementETA caliber 7750 hours, minutes, small seconds | date, day | Chronograph
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Khaki Aviation H76616133

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Khaki Aviation H76616133, seen from the bench

The Khaki Aviation represents Hamilton's aviation collection, equipped with the automatic ETA 7750 movement. The caliber offers hours, minutes, small seconds, date and day indications, as well as chronograph complications. The watch features 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Hamilton Khaki Aviation H76616133?

The lug width (ansa) of the Hamilton Khaki Aviation H76616133 is 22 millimetres. This measurement indicates the horizontal spacing between the two spring bar attachments where the strap is secured. To verify, use a digital calliper, inserting the tip perpendicularly between the lugs with the watch positioned horizontally.

What is the best strap for the Hamilton Khaki Aviation H76616133?

The ideal strap depends on your context of use. For formal occasions and office wear, we recommend alligator in brown tones or high-quality vegetable-tanned calf leather. For daily versatile wear, cognac or tobacco calf offers a strong balance between aesthetics and durability. For actual aviation operations or outdoor activity, a technical nylon NATO or FKM rubber provides absolute practicality and reliability.

How do I change the strap on a 22mm lug width watch?

To change a 22mm strap: position the watch horizontally with the dial facing downward. Use a dedicated spring bar tool or fine tweezers to gently compress the internal spring mechanism of the lug. Insert the new strap on one side first, then compress the spring again and insert the opposite attachment. Verify that both attachments are securely seated before wearing.

Can I fit an aftermarket compatible strap on this H76616133?

Yes, you can fit any 22mm lug width strap on this watch. However, for optimal aesthetic results and maximum durability, select straps made by specialists who understand the proportions of a 44mm chronograph and have appropriate strap thickness for the passants. Avoid generic synthetic leather or inferior-quality straps, as they do not honour the heritage of this instrument.

What is the average lifespan of a leather strap on this watch?

A quality leather strap treated with vegetable tanning, mounted on a 44mm watch such as the H76616133, has an estimated lifespan of 3 to 7 years, depending on usage intensity and environmental conditions. Prolonged exposure to humidity or excessive heat reduces longevity. Alligator typically outlasts calf, whilst shell cordovan, though initially stiffer, develops a very deep and resilient patina over time. Regular maintenance—gentle cleaning with a damp cloth and conditioning with natural oils every 6–12 months—significantly extends useful life.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only