Hamilton
Khaki Field H69439910— lug 20mm

The H69439910 features 20mm lug width, a specific measurement for the 38mm Khaki Field line. It is essential to measure precisely at the inner contact points of the lugs before ordering a strap, as 20mm is not a standard dimension readily available in generic catalogues.

It depends on intended use. To maintain the original field-oriented identity, a vegetable-tanned calf leather or shell cordovan strap offers natural patina and durability. For tactical or aquatic environments, a ballistic nylon NATO is ideal. A FKM rubber strap with deployante is perfect for all-day wear and chemical resistance.

Use a spring bar tool: position yourself on one side of the case, apply slight inward pressure on the lug toward the centre to create tension, then extract the spring bar parallel to the dial. Remove the old strap and insert the new one by aligning its ends with the lug seats, reinserting the spring bars from the same angle.

Yes, but you must explicitly select straps specified for 20mm lug width, not 18mm or 22mm. Milano Straps offers a dedicated collection of leather, NATO, and rubber straps in this specific dimension, all ready for dispatch and customisable according to colour and material preferences.

A quality leather strap, worn daily, maintains structural integrity for approximately 3 to 5 years. Vegetable-tanned leather ages naturally, developing patina and surface creasing; shell cordovan lasts longer. Excessive humidity and prolonged sun exposure accelerate ageing. Periodic maintenance with neutral balms and storage in a dry environment significantly extends useful life.