Strap for Intra-Matic 38 Stainless Steel / Champagne

The lug width (strap width) of the Hamilton Intra-Matic H38455501 is 20mm. This internal dimension, measured between the two strap lugs, is specific to this model and determines aftermarket strap compatibility. It is advisable to measure it directly by removing the original strap to avoid errors.

The choice depends on your intended use. For formal and business contexts, an alligator or calf leather strap with a steel deployante maintains elegance. For versatile daily wear, a nylon NATO strap ensures durability and quick changes. For marine environments or humid climates, FKM rubber is the most durable solution, although it sacrifices the tactile comfort of leather.

Strap removal is a simple operation if you have a spring bar remover tool (flat lever). Insert the lever under the metallic strap tube, press gently to release the internal spring, and slide the tube out. Reverse the process to install the new strap, ensuring the spring bar is fully seated on both sides of the case.

Yes, provided it is 20mm lug width and manufactured by specialised craftsmen. Hamilton does not restrict this type of personalisation, and a well-constructed strap in alligator, calf or vegetable-tanned leather enhances the wearing experience without compromising the movement or case. Ensure the deployante (if present) does not create friction with the lugs.

A quality leather strap, treated with natural waxes and vegetable-tanned, typically lasts 18–36 months with daily wear in temperate climate. Durability depends on frequency of wear, exposure to moisture and sunlight, and maintenance (periodic cleaning, drying after water contact). Rubber, by comparison, exceeds 5 years under similar conditions.