Strap for Intra-Matic 38 Yellow Gold / Silver

The lug width (ansa) of the Hamilton Intra-Matic H38475751 is 20 millimetres. This measurement represents the distance between the two lugs (attachment points on the case) where the strap is installed. To verify this, use a digital calliper positioned perpendicularly between the lugs, or consult the official Hamilton documentation provided with the timepiece.

For the H38475751, we recommend three primary categories: 1) Leather straps, preferably alligator or vegetable-tanned calf, which enhance the classic character of the watch and develop a fascinating patina over time; 2) NATO straps in woven textile or nylon, ideal for those desiring practicality and chromatic versatility without requiring tools; 3) Natural rubber or neoprene straps for contexts where moisture resistance and ease of maintenance are priorities. Your choice depends on intended use and personal aesthetic preferences.

Changing the strap requires a spring bar tool (strap remover) or alternatively a small flathead screwdriver. Position the watch face-down on a soft surface. Insert the tool into the small hole on the inner passant, compressing the spring pin until it releases completely. The strap will then detach easily. For installation, align the new strap's holes with the lugs and gently push the pin ends until they re-engage with the passant. Ensure both sides are securely fastened before wearing the watch.

Any strap with a 20-millimetre lug width is compatible with the H38475751. Milano Straps offers a comprehensive range of artisanal straps in this size: alligator, calf, shell cordovan, vegetable-tanned leather, NATO textiles in various colours, and rubber options. It is essential to verify that your chosen strap is precisely 20mm and not 22mm or another size, otherwise it will not fit correctly to the case lugs.

Durability depends on leather type and intensity of use. A strap in alligator or vegetable-tanned calf, subjected to regular wear and proper maintenance (occasional cleaning and conditioning with specialist creams), can remain in excellent condition for 3–5 years. If worn daily, the most stressed area (the buckle region) may require replacement after 2–3 years. Rubber straps typically last longer (5–7 years), whilst NATO textiles resist indefinitely but may lose elasticity after 4–6 years of heavy use.