Hamilton · Khaki Aviation

Strap for Khaki Aviation X Wind Day Date Auto Stainless Steel / Black / Bracelet

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

Lug width22 mm
Case diameter45 mm
ReferenceH77755133
FamilyKhaki Aviation
MovementHamilton caliber H-30 Hours, Minutes, Seconds | Date, Day
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 H77755133

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

Frequently asked questions

What is the lug width of the Hamilton Khaki Aviation H77755133?

The Hamilton Khaki Aviation H77755133 features a 22mm lug width, measured between the pins connecting the case to the strap lugs. This dimension is the ideal proportion for a 45mm case, ensuring harmonious proportions and compatibility with the extensive catalogue of artisanal straps available in this width.

Which strap type pairs best with the Hamilton Khaki Aviation H77755133?

The ideal strap depends on intended use. To preserve authentic aviatic character, we recommend Tuscan leather with vegetable tanning in brown or ochre tones: the natural patina developing over time amplifies the vintage-modern character. Alternatively, a NATO strap in ripstop nylon or an alligator strap with deployant clasp complement the instrumental profile whilst maintaining stylistic coherence.

How do I change the strap on my Hamilton Khaki Aviation H77755133?

Strap replacement requires a quality spring bar remover tool. Position the watch case upward, locate the small hole beneath the pin at 12 or 6 o'clock, gently insert the remover to compress the internal spring, and slide the pin out of the case. Repeat for the opposite pin. Avoid excessive pressure on the lugs to prevent damage. If uncertain, consult a professional watchmaker.

Can I use an aftermarket strap on my Hamilton Khaki Aviation H77755133?

Absolutely. Any strap with a 22mm lug width is compatible with the H77755133. Artisanal straps from Milano Straps—in vegetable-tanned leather, alligator, NATO, and rubber—are precisely dimensioned for this width and guarantee perfect fit without adaptations. The construction quality of artisanal straps often exceeds original accessories.

How long does a leather strap last? Does it require maintenance?

A well-crafted vegetable-tanned Tuscan leather strap maintains structural functionality for 5-7 years of regular use, though visible patina evolves after 2-3 years. Maintenance consists of occasional cleaning with a damp cloth and periodic application of leather-specific conditioner (e.g. beeswax-based products). Avoid prolonged water immersion and direct intense sunlight. Natural ageing of leather is integral to its beauty: each strap develops a unique signature.

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