Hamilton · Khaki Field

Strap for Khaki Field Titanium Auto 42 PVD / Black

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

Lug width20 mm
Case diameter42 mm
ReferenceH70665533
FamilyKhaki Field
MovementHamilton caliber H-10 ND hours, minutes, seconds
Year2020
CaseTitanium

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 H70665533

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Khaki Field H70665533, seen from the bench

The Hamilton Khaki Field H70665533 is a 42mm titanium tool watch with a leap-second dial for tactical applications and high-contrast luminous indices. Powered by the Hamilton caliber H-10 ND quartz movement, it features an antimagnetic case built to military specifications, scratch-resistant sapphire crystal, and a screw-down titanium crown. Water-resistant to 100 metres with a 20mm lug width, this modern evolution of the 1917 military chronometer icon combines aerospace-grade titanium's corrosion resistance and lightweight properties with practical everyday wearability.

Frequently asked questions

What is the lug width of the Hamilton Khaki Field H70665533?

The lug width of the Hamilton Khaki Field H70665533 is 20 millimetres. This measurement, taken between the two spring bar pins, determines compatibility with aftermarket straps. To verify: remove the original strap using a spring bar tool and measure the distance between pins with a digital calliper.

Which strap do you recommend for the Khaki Field H70665533?

For the Khaki Field H70665533 we recommend straps in vegetable-tanned alligator leather (cognac tone), NATO fabric (grey or sage green), shell cordovan (mahogany brown), or full-grain calf. Each material reinterprets the tool watch character: alligator adds elegance, NATO maintains military heritage, shell cordovan emphasises durability, calf evolves with natural patina.

How do I change the strap on the Hamilton Khaki Field H70665533?

Remove the original strap by extracting the spring bar pins with a spring bar tool (lateral pressure on pins, extraction). Insert the pins of the new strap aligning the strap lugs with the space between the case pins. Press until you feel the click. Do not use hammers or tools that might scratch the titanium.

Is a 20mm aftermarket strap compatible with the H70665533?

Yes, any strap with 20 millimetre lug width is compatible. Verify that when mounted with standard pins, the strap does not protrude beyond the case edges (the Khaki Field has classical lug width, not flared). If you wish a deployant clasp, ensure it matches strap width.

How long does a leather strap last on the Khaki Field H70665533?

A quality leather strap (alligatore, full-grain calf, shell cordovan) lasts 3–5 years with daily wear, or 5–8 years with rotation among multiple straps. Lifespan depends on maintenance (hydration with specific balms every 6–12 months), climate conditions (humidity shortens life), and frequency of wear. NATO fabric lasts 4–7 years. FKM rubber up to 8–10 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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only