Hamilton · Khaki Field

Strap for Khaki Field Automatic Day Date 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
ReferenceH70695735
FamilyKhaki Field
MovementHamilton caliber H-30 Hours, Minutes, Seconds | Date, Day
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 H70695735

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Khaki Field H70695735, seen from the bench

The Khaki Field represents the modern evolution of the Hamilton military watches produced for the US Army during World War II. It features the automatic H-30 caliber with hours, minutes, seconds, date and day of the week indications. The model has 20mm lugs and maintains the functional aesthetic typical of field instruments.

Frequently asked questions

What is the exact lug width of the Hamilton Khaki Field H70695735?

The lug width of the Hamilton Khaki Field H70695735 is 20mm. This measurement defines the distance between the two lugs (attachment points) on the case where the strap is inserted. A 20mm strap ensures a perfect fit without lateral play. You can verify compatibility by measuring with a digital calliper between the inner edges of the lugs.

Which strap do you recommend for the H70695735?

For the Hamilton Khaki Field H70695735, we recommend an alligator leather strap with vegetable tanning (dark brown hue) for a refined aesthetic, or a natural Pueblo calf if you prefer organic ageing. Those seeking practicality should opt for a woven textile NATO, whilst an FKM rubber offers durability in humid environments. The choice depends on your use case: formal, daily wear, or sporty.

How do you change the strap on the Hamilton Khaki Field H70695735?

Strap replacement requires a dedicated spring bar tool. Position the watch on a stable surface, insert the tool's tip into the lug release hole, apply gentle pressure to lift the internal spring, and disconnect the previous strap. Repeat on the other lug. Insert the new 20mm strap the same way, ensuring the springs click into place. Avoid excessive force to prevent damage to the lugs.

Is an aftermarket 20mm strap compatible with this watch?

Yes, any aftermarket 20mm strap is compatible with the Hamilton Khaki Field H70695735. The standardised lug width allows immediate interchangeability between different brands, provided the strap has appropriate spring bars. Always verify the declared width before purchase and consider leather thickness: excessively stiff leather may require an initial break-in period.

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

Leather strap longevity depends on tanning quality and usage patterns. A premium vegetable-tanned leather, worn daily in normal conditions, typically lasts 2–4 years. Humid environments, intense perspiration, and mechanical stress reduce this estimate to 18–24 months. Ageing is cosmetic: the strap develops patina and unique chromatic shifts. Dry it when wet, avoid prolonged sun exposure, and consider replacement as an aesthetic refresh opportunity.

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