Strap for Broadway Day Date Quartz Steel / Blue

The lug width (ansa misura) of the Hamilton Broadway H43311941 is precisely 20 millimetres. This dimension is fixed and non-negotiable: a 18mm or 22mm strap will not fit. To verify it, remove the current strap and measure the external distance between the two lugs with a ruler.

We recommend genuine alligator leather straps for maximum formality, or vegetable-tanned calf for elegance with natural patina development. For robust daily use, nylon NATO straps offer practicality. Rubber is ideal if the watch must endure humid environments or physical activity. All straps must respect the 20mm width specification.

Removing the strap from a Hamilton requires a specific tool called a spring bar tool. Insert the flat end of the tool into the lateral spaces of the case, near the lugs, to release the spring bar that holds the strap in position. Remove the bar and old strap, then insert the new 20mm strap by engaging the bar into the corresponding holes.

Any strap with a 20mm lug width is compatible. Specialised suppliers offer options in leather (alligator, calf, crocodile), fabrics (NATO, canvas), rubber and elastomer materials. Ensure the new strap is specifically designed for 20mm, as this size is not standard like 18mm or 22mm, so availability is more curated but offered by specialist ateliers.

A high-quality leather strap, such as alligator or shell cordovan, typically lasts 3-5 years with moderate daily use. Vegetable-tanned calf, being more absorbent, may require replacement after 2-3 years. Lifespan depends on usage conditions (sun exposure, humidity, frequency of wear) and maintenance: periodic treatments with specialist creams significantly extend strap life.