Hamilton · Khaki Field

Strap for Khaki Pioneer Auto Black

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
ReferenceH60515533
FamilyKhaki Field
MovementETA caliber 2824-2 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

Straps for the Khaki Field H60515533

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Khaki Field H60515533, seen from the bench

The Hamilton Khaki Field H60515533 is a contemporary evolution of a military legend, originally designed for American troops during World War II. With a 45mm stainless steel case and a 22mm lug width, it maintains essential aesthetics and uncompromising functionality characteristic of tool watches. The watch features an ETA 2824-2 automatic movement with 38 hours of power reserve, a neutral dial with hours, minutes, seconds and date window, and balanced proportions suitable for various wrist sizes.

Frequently asked questions

What is the lug width of the Hamilton Khaki Field H60515533?

The lug width of the Hamilton Khaki Field H60515533 is 22mm. This measurement corresponds to the space between the two lugs on the case and is essential for strap compatibility. You can measure the lug width using a digital calliper or ruler positioned at the attachment points where the strap connects to the case.

What is the best strap for the H60515533?

The best strap depends on your intended use and personal preferences. For formal elegance, an alligator strap in cognac brown with vegetable tanning offers natural patina and tactile luxury. For sports versatility, a high-count NATO fabric allows rapid colour changes. For robustness, FKM rubber dries quickly in humid environments. Calf leather represents the compromise between initial softness and long-term durability.

How do you change the strap on a Hamilton Khaki Field?

The strap is changed using a dedicated spring bar tool to compress the elastic pins (spring bars) located underneath the case. Position the tool on the pin slot, compress gently, and the strap will release. Repeat on the other side. Installation of the new strap proceeds in reverse: thread the pin through the first hole, guide it through the second until fully seated and secure.

Can an aftermarket strap compatible with this model be mounted?

Yes, any strap with a 22mm lug width is compatible with the H60515533. Quality aftermarket straps—leather, alligator, NATO, rubber—deliver the same functionality and often provide superior aesthetic and material options. Ensure the strap thickness (typically 4–5mm) is appropriate for the case to avoid excessive play.

What is the lifespan of a leather strap on a Hamilton Khaki Field?

The lifespan of a leather strap depends on frequency of use, care received, and material quality. An alligator strap with vegetable tanning, worn occasionally and kept dry, may last 5–7 years or longer. Calf leather subjected to daily use in humid environments will have shorter longevity, approximately 2–4 years. Regular maintenance—cleaning, drying, and conditioning—significantly extends strap 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