Hamilton · Jazzmaster

Strap for Jazzmaster Open Heart 40mm Silver Dial Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
ReferenceH32565155
FamilyJazzmaster
MovementETA caliber 2824-2 hours, minutes, seconds | date
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 Jazzmaster H32565155

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Jazzmaster H32565155, seen from the bench

The Hamilton Jazzmaster H32565155 is a modern reinterpretation of the original 1950s Jazzmaster, featuring a 40mm stainless steel case with a clean silver dial and applied indices. The 20mm lug width accommodates standard aftermarket straps. Powered by the ETA caliber 2824-2 Swiss movement running at 28,800 vph, it offers hours, minutes, seconds and date functions. The watch delivers essential timekeeping without unnecessary complications, designed for daily wear with appropriate water resistance.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H32565155?

The lug width of the Hamilton Jazzmaster H32565155 is 20 millimetres. This measurement refers to the internal distance between the two spring bars that attach the strap to the case. It is essential to verify this dimension before purchasing an aftermarket strap to ensure perfect compatibility.

Which strap is recommended for the H32565155?

For the Jazzmaster H32565155, we recommend materials that reflect the watch's sporty-elegant heritage: vegetable-tanned leather in cognac for a retro approach, alligator in grey for formal occasions, plain black calf leather for everyday versatility, canvas NATO for a robust casual aesthetic. The choice depends on intended use and personal aesthetic preferences.

How do you change the strap on a Hamilton Jazzmaster?

To change the strap, use a spring bar tool—a small instrument with a curved tip that compresses the spring mechanism inside the pin. Insert the tip under the pin and apply gentle pressure to widen the lug hole, then remove the pin. Repeat on the other side. Align the new strap holes with the pins and reinsert the pins until they lock firmly in place. A straightforward procedure, but one requiring precision.

Can I use an aftermarket strap on a Hamilton Jazzmaster H32565155?

Yes, absolutely. The H32565155 accepts any quality aftermarket strap with a 20mm lug width. Milanostraps.it offers a specialised collection of 20mm straps handcrafted and fully compatible, customisable according to your aesthetic preferences and intended use.

How long does a leather strap last on a watch like the Jazzmaster?

The lifespan of a leather strap depends on the material, tanning method, and intensive use. A vegetable-tanned calf leather strap, with ordinary care and regular rotation with other straps, maintains structural integrity for 3–5 years. An alligator or shell cordovan strap can last beyond 7 years. Constant exposure to humidity and perspiration accelerates wear; periodic cleaning and thorough drying significantly extend strap 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