Hamilton · Khaki Field

Strap for Khaki Field Auto 40 Stainless Steel / Blue

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

Lug width20 mm
Case diameter40 mm
ReferenceH70305943
FamilyKhaki Field
MovementHamilton caliber H-10 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 H70305943

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Khaki Field H70305943, seen from the bench

The Hamilton Khaki Field H70305943 is a 40mm stainless steel automatic watch featuring an olive drab dial and applied steel indices. Powered by the H-10 caliber with approximately 80 hours of power reserve, it combines a 316L steel case with 100-meter water resistance. This 20mm lug width model represents the contemporary evolution of Hamilton's military-inspired Field collection, prioritizing functional design over ornamental aesthetics.

Frequently asked questions

What is the lug width of the Hamilton Khaki Field H70305943?

The Hamilton Khaki Field H70305943 features a 20mm lug width, which is the distance between the two spring bar attachments on the case. Verifying this measurement before purchasing an aftermarket strap ensures perfect compatibility and fit on your timepiece.

Which strap is best suited for the Hamilton Khaki Field H70305943?

The Khaki Field pairs exceptionally well with vegetable-tanned leather straps in brown or cognac tones, NATO-fabric straps in subdued colours, nautical rubber, or shell cordovan. The choice depends on your usage: leather for daily elegance, NATO for versatility, rubber for durability in damp environments. Consultation at Casati Milano helps you select based on your personal style and lifestyle.

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

The strap is changed using a spring bar tool to compress the internal springs of the attachments. Insert the tool at the strap end, gently compress the spring pin, and slide the strap outward. Repeat on the opposite side. For the new strap, align the holes with the pins and slowly release the compressor to secure. If uncertain, consulting a professional is always advisable.

Which aftermarket straps are compatible with the 20mm lug width?

Any strap with a 20mm lug width is compatible with the Hamilton Khaki Field H70305943. On milanostraps.it, you'll find an extensive selection of artisanal 20mm straps: vegetable-tanned leather, alligator, shell cordovan, NATO fabrics, and rubber. Each piece is crafted to measure and can be personalised according to your colour and finish preferences.

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

A quality leather strap (vegetable-tanned or shell cordovan) typically lasts 3-7 years with daily wear, depending on frequency of use and care. Vegetable-tanned leather develops a natural patina over time, becoming softer and more characterful. To extend longevity, avoid prolonged water exposure and occasionally apply a dedicated leather balm. Artisanal straps from Casati Milano are crafted with premium hides selected for durability and timeless appeal.

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