Technical Archive

Hamilton
Broadway H43515735— lug 20mm

Hamilton Broadway H43515735: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Broadway Day Date Automatic Steel / Grey

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Hamilton H43515735
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

H43515735

Movement

Hamilton caliber H-30 Hours, Minutes, Seconds | Date, Day

The Heritage

The Hamilton Broadway features the H-30 caliber with hour, minute, second, date, and day of the week indications. The H43515735 model has 20mm lugs. The movement offers essential functions for daily use with a full calendar complication.

FAQ

What is the lug width of the Hamilton Broadway H43515735?

The lug width of the Hamilton Broadway H43515735 is 20mm. This dimension requires specific, non-standard straps. To verify with precision, remove the strap from the watch and measure the internal distance between the lugs using a digital calliper.

What is the best strap for the Hamilton Broadway H43515735?

The best strap depends on usage: alligator in black or tan conveys formal elegance whilst harmonising with the sunburst dial; vegetable-tanned calf in cognac echoes the rose gold-toned hands; a navy NATO offers sport versatility; a grey rubber strap suits intensive activities. Your choice should reflect your primary wearing context.

How do I change the strap on the Hamilton Broadway H43515735?

To change the strap, use a spring bar tool. Position the tip in the lug hole, press gently to compress the internal spring, and extract the spring bar from the case. Repeat on the opposite lug. Align the new strap with the spring bars and press until the click locks.

Is an aftermarket strap compatible with the Hamilton Broadway H43515735?

Yes, any strap with a 20mm lug width is compatible. Verify the measured width is precisely 20mm and spring bar diameter is standard (1.8mm or 2.0mm). Leather, fabric and rubber straps meeting these specifications are fully compatible and allow aesthetic personalisation.

How long does a leather strap last on the Hamilton Broadway H43515735?

Longevity depends on material and maintenance. Quality artisanal alligator or vegetable-tanned calf lasts 3–5 years of daily wear, developing patina over time. Rubber maintains elasticity 4–6 years before hardening. NATO canvas resists 5–7 years. Condition leather every 6–12 months and dry quickly after prolonged moisture to extend strap lifespan significantly.