Technical Archive

Hamilton
Khaki Field H70565133— lug 20mm

Hamilton Khaki Field H70565133: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Khaki Field Titanium Auto 42 / Black / Bracelet

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Hamilton H70565133
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

H70565133

Movement

Hamilton caliber H-10 Hours, Minutes, Seconds | Date

The Heritage

The Khaki Field represents Hamilton's military line, developed from the 1940s for the US army. It is equipped with the automatic H-10 caliber with hour, minute, second and date indication. The reference H70565133 maintains the functional design typical of field watches.

FAQ

What is the lug width of the Hamilton Khaki Field H70565133?

The Hamilton Khaki Field H70565133 is fitted with lugs of exactly 20 millimeters width. To verify this measurement, position a digital caliper perpendicular to the side lugs and measure the internal width of the space designed for the strap. This dimension is critical for compatibility: a 20mm strap will fit perfectly in the slot without lateral play or excessive compression.

What is the best strap for the Hamilton Khaki Field H70565133?

The choice depends on intended use. For formal elegance: dark brown alligator leather or vegetable-tanned calf. For tactical authenticity and versatility: woven nylon NATO strap. For humid or marine environments: UV-resistant FKM rubber. The Khaki Field H70565133, thanks to its titanium case and two-tone dial, accommodates all these materials beautifully without aesthetic compromise.

How do I change the strap on my Hamilton Khaki Field H70565133?

The strap is changed by removing the spring bars—the small spring-loaded pins that hold the strap in the lugs. Use a spring bar tool or a thin flat-blade instrument, inserting the tip into the small hole beneath the lug, then apply light pressure to release the outer pin. Remove the old strap, insert the spring bars into the new strap, and snap the pins back into the lugs until you hear an audible click of engagement.

What aftermarket strap is compatible with the Hamilton Khaki Field H70565133?

Any strap certified at 20 millimeters lug width is compatible with this model. Milano Straps offers a dedicated collection of 20mm straps in alligator leather, calf, NATO, and rubber, custom-made to ensure perfect fit to the lugs without play. Avoid generic industrial-grade straps that do not respect tight manufacturing tolerances.

How long does a leather strap last on my Hamilton Khaki Field H70565133?

A quality artisanal vegetable-tanned leather strap maintains functionality and aesthetics for 3–5 years with moderate daily use and regular maintenance. Durability depends on environmental humidity, cleaning frequency, and type of activity. Constant exposure to perspiration, unsecured fresh water, and direct sunlight accelerates aging. A NATO or rubber strap easily exceeds 7–10 years of operational life without significant degradation.