Hamilton · Broadway

Strap for Broadway Day Date Automatic Steel / Black

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceH43515175
FamilyBroadway
MovementHamilton caliber H-30 Hours, Minutes, Seconds | Date, Day
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Broadway H43515175

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Broadway H43515175, seen from the bench

The Hamilton Broadway features the automatic H-30 caliber with hour, minute, second, date and day of the week indications. The watch has 22mm lugs for the strap. The movement offers an extended power reserve compared to Hamilton's standard calibers.

Frequently asked questions

What is the exact lug width of the Hamilton Broadway H43515175?

The Hamilton Broadway H43515175 is fitted with lugs measuring 22mm in width. This dimension is standard across most Broadway collection models. To verify, measure the linear distance from the inner edge of one lug to the inner edge of the opposite lug, excluding any existing strap.

Which strap is recommended for the Broadway H43515175?

We recommend a full-grain leather strap with vegetable tanning, 22mm width, for the H43515175. A natural grain Tuscan calf in cognac brown accentuates the satin-finished stainless steel case. Alternatively, alligator or NATO straps offer superior versatility and durability.

How do I change the strap on the Hamilton Broadway H43515175?

Position the watch with the lugs facing upward. Use a spring bar removal tool to compress the small spring inside each lug, then carefully withdraw the existing strap. Insert the new strap, ensuring the spring locks firmly in place. Verify the strap is not twisted.

Is a 22mm aftermarket strap compatible with the Broadway H43515175?

Yes, any strap with a 22mm lug width is compatible with the H43515175. Milano Straps offers an extensive range of artisanal 22mm straps in various materials—Tuscan leather, alligator, cordura, FKM rubber—all conforming to the watch's technical specifications.

How long does a leather strap last on the Hamilton Broadway H43515175?

A full-grain leather strap with proper vegetable tanning typically lasts 3–5 years with daily wear, extending to 7–8 years with moderate use and regular maintenance (cleaning, conditioning with specialist creams). Sun exposure, humidity, and frequency of wear significantly influence longevity.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only