Hamilton
Khaki Aviation H64666555— lug 20mm
Hamilton Khaki Aviation H64666555: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Hamilton H64666555The essential strap measurement.
Browse 20mm straps →H64666555
Hamilton caliber H-31 Hours, Minutes, Small Seconds | Date | Chronograph
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Khaki Aviation
FAQ
What is the exact lug width of the Hamilton Khaki Aviation H64666555?
The lug width of the H64666555 is 20 millimetres. This width is the Hamilton standard for Khaki Aviation chronographs and is measured as the distance between the two attachment pins extending from the case. It is essential to respect this dimension when selecting a compatible aftermarket strap.
Which strap is recommended for the Hamilton Khaki Aviation H64666555?
The H64666555 pairs excellently with alligator straps (for a more refined aesthetic), vegetable-tanned calf leather (for natural patina development), technical NATO straps (for aviation heritage fidelity), and structured rubber (for humid environments). The choice depends on daily use and desired aesthetic. A medium-brown alligator represents the ideal compromise between elegance and tactical functionality.
How do I change the strap on the Hamilton Khaki Aviation H64666555?
Strap changing requires a spring bar tool—a double-pronged instrument specifically designed to lever the spring bars that secure the strap to the case lugs. Insert the tool between the case and strap, apply gentle pressure to compress the spring pin, and the strap will detach. Repeat on the opposite side. Position the new strap by aligning the holes to the lugs and press until you hear the click of engagement.
Can I use an aftermarket-compatible strap with my H64666555?
Yes, provided the strap has a 20mm lug width. Quality artisanal straps offer customisation opportunities and materials (alligator, shell cordovan, vegetable-tanned leather) unavailable in the standard market. Always verify that the lug width matches before purchase.
How long does a leather strap last on the Hamilton Khaki Aviation H64666555?
Longevity depends on material and usage. Vegetable-tanned calf subjected to daily wear maintains structural integrity for 5–7 years; alligator, more resistant to creasing, can last 8–10 years. Technical rubber resists for 3–5 years before showing signs of elasticity degradation. Constant humidity exposure shortens these periods. Periodic maintenance (hydration for leather, cleaning for rubber) significantly extends strap lifespan.