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Hamilton · Jazzmaster

Strap for Jazzmaster Open Heart 36 Stainless Steel - Diamond / MOP / Bracelet

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

18mm
18 mm strapsAll Hamilton
Lug width18 mm
Case diameter36 mm
ReferenceH32205890 (aka: H32205890)
FamilyJazzmaster
MovementHamilton caliber H-10 ND Hours, Minutes, Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

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Straps for the Jazzmaster H32205890 (aka: H32205890)

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Jazzmaster H32205890 (aka: H32205890), seen from the bench

The Hamilton Jazzmaster H32205890 is a 36 mm stainless steel timepiece featuring the automatic Hamilton caliber H-10 ND movement. The case features a satin finish and a sapphire anti-reflective crystal. The dial displays linear indices and silver sword hands, reflecting Hamilton's aeronautical and industrial heritage. The lug width is 18 mm, a rare specification requiring careful strap selection. An undersized strap (17.8 mm) is recommended to ensure secure mounting without strain on the steel lugs.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H32205890?

The Hamilton Jazzmaster H32205890 features an 18-millimetre lug width, a rare specification for this 36mm model. Precision is essential: measure the internal spacing between the case lugs to ensure installation without forcing the strap attachments.

Which strap is most suitable for the Hamilton Jazzmaster H32205890?

For the Jazzmaster H32205890, an alligator strap with fine grain represents the most elegant choice, harmonising seamlessly with the satin-finished stainless steel case. Vegetable-tanned calf and cotton-polyester NATO straps are valid alternatives, offering respectively aesthetic evolution over time or everyday versatility.

How do I change the strap on a Hamilton Jazzmaster H32205890?

The procedure requires two tools: a spring bar tool or small screwdriver. Support the strap gently, locate the elastic bars securing the lugs in the case holes, compress the lateral bar with your tool, carefully extract the old strap, then insert the new one ensuring the bar fully seats in the lug holes without deforming the steel.

Are aftermarket straps available that are compatible with the Hamilton Jazzmaster H32205890?

Yes. Straps with 18mm lug width (undersized 17.8mm for safety) are compatible with the Jazzmaster H32205890. We recommend precise metric verification before purchase, as this width is not standard in mainstream catalogues: specialised suppliers offer bespoke artisanal solutions.

How long does a leather strap last on a Hamilton Jazzmaster like the H32205890 model?

Durability depends on frequency of use and environmental conditions. A vegetable-tanned calf strap maintains structural integrity for 3–5 years of daily wear; alligator, being more resistant, may extend to 5–7 years. Periodic maintenance (gentle cleaning, hydration with natural creams) significantly extends material 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