Hamilton · Khaki Field

Strap for Khaki Field Mechanical 42 White / 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 diameter42 mm
ReferenceH69529913
FamilyKhaki Field
MovementHamilton caliber H-50 ND hours, minutes, seconds
Year2021
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 H69529913

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Khaki Field H69529913, seen from the bench

The Khaki Field represents the modern evolution of the Hamilton military line developed during World War II. It is equipped with the automatic H-50 caliber with hour, minute and second functions. The case features 22mm lugs for the strap.

Frequently asked questions

What is the exact lug width of the Hamilton Khaki Field H69529913?

The lug width of the Hamilton Khaki Field H69529913 is 22 millimetres. This measurement refers to the distance between the spring bar pins that attach the strap to the case. All compatible straps must be 22mm wide to ensure a perfect fit without lateral play or excessive tension.

Which strap do you recommend for the Khaki Field H69529913?

It depends on intended use. For military aesthetic continuity: a NATO strap in ballistic nylon, black or olive. For everyday elegance: vegetable-tanned leather in dark brown or anthracite grey. For formal contexts: shell cordovan or alligator. For sports and humid environments: FKM rubber. All available in 22mm width at Milano Straps.

How do I change the strap on this Hamilton?

The Hamilton Khaki Field H69529913 uses a standard spring bar system. Place the watch on a flat surface and locate the small pins at the base of the lugs. Use a spring bar tool to gently compress the spring and extract the pin. Once released, the old strap slides off. Insert the new strap from the ends and snap the pins back into their seats. Alternatively, strap changes are complimentary with purchase at Casati Milano (Milano Straps atelier).

Can I use a quality aftermarket strap on this watch?

Absolutely, and it is highly recommended. A hand-crafted vegetable-tanned or shell cordovan leather strap transforms the character of the H69529913 entirely and protects it from wear caused by inferior factory straps. Milano Straps manufactures exclusively in Italian tannery leather, tested on this specific lug width (22mm). Compatibility is guaranteed.

What is the average lifespan of a leather strap for this model?

It depends on material and maintenance. Vegetable-tanned calf leather lasts 3–5 years under intensive use. Shell cordovan can reach 7–10 years. Alligator 8+ years. The critical factor is prolonged humidity exposure and body perspiration. Conditioning every 2–3 months significantly extends lifespan. Ballistic nylon NATO straps easily exceed 10 years without deterioration. FKM rubber remains unchanged for 8–12 years.

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