Hamilton · Jazzmaster

Strap for Jazzmaster Open Heart 42 Stainless Steel / Salmon

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
ReferenceH32705521
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

Straps for the Jazzmaster H32705521

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Jazzmaster H32705521, seen from the bench

The Hamilton Jazzmaster H32705521 is a 42mm stainless steel watch with a salmon dial, powered by the manual-wind Hamilton H-10 ND caliber. It features clean, legible design with applied indices and lume, reflecting post-war American watchmaking heritage. The 22mm lug width provides versatile strap compatibility, from vegetable-tanned leather to technical fabrics, making it suitable for daily wear.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H32705521?

The Hamilton Jazzmaster H32705521 features 22mm lugs. This lug width is the standard specification for the model and ensures compatibility with a comprehensive range of aftermarket straps, whether in leather, textile, or rubber.

What is the best strap for the Hamilton Jazzmaster H32705521?

For the Jazzmaster H32705521, leather straps in vegetable tanning—cognac or dark brown tones—offer the strongest stylistic coherence with the watch's American heritage. Alternatively, heavyweight cotton NATO straps provide daily versatility, whilst genuine alligator elevates the design for formal occasions.

How do you change the strap on a Hamilton Jazzmaster H32705521?

To change the strap, obtain a spring bar tool. Position the tool at the lug ends (attachment pins), gently compress the internal spring, and slide the lug pin out of the case. The process takes less than one minute and requires no technical expertise.

Is an aftermarket strap compatible with the Hamilton Jazzmaster H32705521?

Yes, any strap with a 22mm lug width is compatible with the H32705521. Milano Straps artisanal straps are manufactured specifically for this lug width, guaranteeing precise fit and construction quality consonant with your timepiece.

How long does a leather strap last on a Hamilton Jazzmaster H32705521?

A quality vegetable-tanned leather strap lasts approximately 5–8 years with daily wear and proper care. Longevity depends on sun exposure, humidity, and frequency of use. Shell cordovan straps can exceed 10 years. Rotating between multiple straps significantly extends the lifespan of each.

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