Hamilton
Railroad H40445955— lug 18mm

The lug width of the Hamilton Railroad H40445955 is precisely 18mm. This measurement is taken between the two inner pins of the case lugs. Any strap for this model must be exactly 18mm wide to fit correctly in the lugs without play or forcing.

The choice depends on daily wear and personal preference. A vegetable-tanned calf leather strap in black offers elegance and durability, developing a natural patina over time. For versatility, an anthracite NATO or black FKM rubber guarantees practicality. For formal occasions, cognac-coloured shell cordovan conveys vintage authority, although it requires regular maintenance.

The process is straightforward: use a spring bar tool to compress the elastic pins in the case lugs. Position the tool beneath the pin, gently push upward to release tension, then remove the old strap. Insert the new strap, aligning the holes with the pins, ensuring the pin clicks into position. Repeat on the other side. The operation takes less than a minute per side.

Yes, all straps with an 18mm lug width are compatible. Artisan manufacturers offer solutions in vegetable-tanned leather, shell cordovan, alligator, tannin calf and NATO, customisable in colour, buckle and thickness. The key is verifying that the lug width is precisely 18mm and that the strap has been fitted with standard spring bars.

A quality calf leather strap with vegetable tanning lasts on average 3-5 years with daily wear and regular maintenance (cleaning with soft cloths, conditioning every 6 months with neutral creams). Shell cordovan, whilst more durable, requires more frequent care. Factors reducing longevity include continuous water exposure, excessive perspiration, forced flexing and lack of preventative maintenance.