Hamilton
Khaki Navy H64515133— lug 20mm
Hamilton Khaki Navy H64515133: 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 H64515133The essential strap measurement.
Browse 20mm straps →H64515133
ETA caliber 2834-2 Hours, Minutes, Seconds | Date, Day
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Khaki Navy
FAQ
What is the lug width of the Hamilton Khaki Navy H64515133?
The lug width of the Hamilton Khaki Navy H64515133 is 20mm. This measurement corresponds to the space between the spring bars that connect the strap to the case. It is essential to verify this measurement before purchasing an aftermarket strap, as different widths (18mm or 22mm) are not compatible and may damage the case lug.
Which strap is recommended for the Hamilton Khaki Navy H64515133?
For the H64515133, we recommend an alligator strap in dark brown or black for a formal appearance, or vegetable-tanned calf leather for those preferring natural patina development over time. Woven NATO straps in grey or navy blue emphasise the tool-watch character, whilst FKM rubber is ideal for sports and humid environments. Your choice depends on intended use and wearing context.
How do I change the strap on the H64515133?
To change the strap, you will need two spring bar tools (or a flathead coin). Gently press the spring bars downward to remove the current strap. Insert the new spring bars into the new strap, align the holes with the case lugs, and press until you hear a click. Verify the strap is securely attached before wearing. If unsure, consult a professional watchmaker.
Is an aftermarket strap compatible with the Hamilton Khaki Navy H64515133?
Yes, any 20mm strap is compatible with the H64515133. However, we recommend purchasing from specialist suppliers who guarantee build quality and longevity. Generic or low-quality straps may present fitting issues or material inconsistency. Opt for straps with automatic deployment clasps and noble materials such as alligator, calf leather, or technical FKM rubber.
How long does a leather strap last on the H64515133?
Leather strap longevity depends on frequency of use, climate, and maintenance. A quality alligator or vegetable-tanned calf strap, worn daily, typically lasts 3–5 years before replacement is needed. Prolonged exposure to sunlight, humidity, and perspiration accelerates ageing. A well-maintained strap—cleaned regularly with soft cloth, protected from perfumes and sprays—can exceed 5 years. NATO and FKM rubber straps offer superior durability in high-stress physical environments.