Hamilton · Khaki Field

Strap for Khaki Field Mechanical 38 Lancaster Edition

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter38 mm
ReferenceH89479970
FamilyKhaki Field
MovementHamilton caliber H-50 ND hours, minutes, seconds
Year2025
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 H89479970

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Khaki Field H89479970, seen from the bench

The Khaki Field represents Hamilton's military line, developed based on the tradition of watches supplied to the American armed forces. It is equipped with the automatic Caliber H-50 movement with hour, minute and second indication. The lugs measure 20mm in width.

Frequently asked questions

What is the lug width of the Hamilton Khaki Field H89479970?

The Hamilton Khaki Field H89479970 features 20mm lug width. This dimension is standard for 38mm sport watches and is fully compatible with all 20mm strap collections at milanostraps.it. To verify, measure the distance between the two lugs of the case using a digital calliper.

What is the best strap for the Hamilton Khaki Field H89479970?

The optimal strap depends on intended use: vegetable-tanned leather (alligator or calf) emphasises sportive elegance; nylon ballistic NATO restores original military character; FKM rubber is ideal for marine or tropical environments. All available in 20mm width on milanostraps.it.

How do I change the strap on a Hamilton Khaki Field H89479970?

Remove the watch from your wrist and place it on a soft surface. Use a dedicated spring bar tool to compress the steel bar supporting the lug, then extract the old strap and insert the new one, ensuring the spring bar clicks correctly into the lug holes on the case.

Are aftermarket straps compatible with the Hamilton Khaki Field H89479970?

Yes, all straps with 20mm lug width are compatible. milanostraps.it offers an extensive selection of artisanal straps in leather, NATO, and rubber specifically designed for this width, with a guarantee of premium materials and Italian craftsmanship.

How long does a leather strap last on the Hamilton Khaki Field H89479970?

A vegetable-tanned leather strap lasts approximately 3-5 years with daily use, provided it is regularly cleaned and protected from excessive moisture. The patina that develops over time makes it increasingly unique. In dry climates, longevity can exceed 7 years; in marine environments, alternating with rubber straps is advisable.

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