Hamilton · Khaki Field

Strap for Khaki Field King 27

Takes 14 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width14 mm
Case diameter27 mm
ReferenceH64211533
FamilyKhaki Field
MovementETA caliber 956.412 hours, minutes, seconds | date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Khaki Field H64211533, seen from the bench

The Hamilton Khaki Field H64211533 is a 27mm field watch powered by an ETA caliber 956.412 manual-wind movement, representing authentic American field watch heritage from the 1940s. The stainless steel case features a military-style dial with applied hour indices and bayonet hands, a date window, mineral crystal, and 30m water resistance. The 14mm lug width provides optical balance for this compact case, designed for durability rather than complications. Strap options include vegetable-tanned calf leather, cognac alligator, kaki NATO nylon, or anthracite FKM rubber.

Frequently asked questions

What is the lug width of the Hamilton Khaki Field H64211533?

The Hamilton Khaki Field H64211533 features a lug width of 14mm. This measurement represents the distance between the two internal lugs of the case where the strap attaches. Accurately measuring this dimension is essential to ensure compatibility with aftermarket straps.

Which strap is best suited for the Hamilton Khaki Field H64211533?

For the H64211533, we recommend straps in vegetable-tanned calf leather (tobacco brown or cognac), military-style NATO nylon, or FKM rubber for daily wear. The choice depends on intended use: leather enhances the vintage aesthetic, NATO recalls the original field heritage, and rubber offers practicality and moisture resistance.

How do I change the strap on my Hamilton Khaki Field H64211533?

To change the strap, use a spring bar removal tool to gently lift the spring bar clasps positioned at the strap ends. Once the old strap is freed, align the new spring bars with the case holes and press the strap until the clasps lock into place. Verify that the strap is secure before wearing the watch.

Can I use an aftermarket strap on the H64211533?

Yes, provided the strap features a compatible 14mm lug width. It is important to verify the exact width before purchase. Milano Straps artisanal straps are available for this lug width with options in leather, NATO, and rubber, customizable according to your aesthetic and functional preferences.

How long does a leather strap last on the Hamilton Khaki Field H64211533?

A quality leather strap with vegetable tanning has an average lifespan of 3-5 years with daily use and regular maintenance. Longevity depends on frequency of use, moisture exposure, and leather quality. Premium leather straps can last longer, developing a patina that enhances their aesthetic character over time.

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