Strap for Broadway GMT Limited Edition 46 Stainless Steel / Black

The lug width (misura ansa in Italian) of the Hamilton Broadway H43725731 is 22 millimetres. This measurement must be verified by inserting a ruler into the space between the two lugs on the case, measured from the inside, to ensure compatibility with any aftermarket strap. It is essential not to confuse the lug width with the lug width of the spring bar housing, which are structural elements that retain the strap.

For the Broadway H43725731, we recommend vegetable-tanned full-grain leather straps (calf or alligator) due to its elevated sports nature and imposing 46mm case. An alligator strap with vegetable tanning imparts uncompromising luxury, whilst Tuscan full-grain calf offers durability and dignified ageing of the patina. For marine or intense outdoor use, a 22mm NATO strap in Cordura is the functionally appropriate choice.

Strap replacement is accomplished using a spring bar removal tool (the small spring that retains the strap in the lugs). Position the watch so that the lugs face upward, gently insert the tool beneath the spring bar from one side, compress the spring slightly and extract the strap. Repeat on the other side. To insert the new 22mm strap, align it to the lugs, compress the spring bars and snap them into the terminal holes of the strap.

Yes, any strap with a lug width of 22 millimetres is compatible with the H43725731. At Milano Straps you will find a wide selection of 22mm straps in various materials (leather, alligator, technical rubber, NATO) and finishes, all ready for dispatch and customisable according to your aesthetic and functional preferences.

A quality vegetable-tanned leather strap (calf or alligator) lasts an average of 5–8 years with daily use, provided regular maintenance (cleaning with a damp cloth, rapid drying after moisture contact, treatment with specific creams every 12–18 months). Factors such as climate, frequency of use, water contact and sun exposure accelerate fibre deterioration. A Cordura NATO resists 10+ years due to the synthetic nature of the material.