Hamilton · Jazzmaster

Strap for Jazzmaster Viewmatic Auto 40 Stainless Steel / Silver / 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
ReferenceH32515155
FamilyJazzmaster
MovementHamilton caliber H-10 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 H32515155

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Jazzmaster H32515155, seen from the bench

The Hamilton Jazzmaster reference H32515155 is powered by the H-10 caliber with hour, minute, second, and date indication. The movement offers essential functions for daily use with a 20mm strap. The Jazzmaster collection represents the brand's classic line with a traditional aesthetic.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H32515155?

The lug width of the H32515155 is 20 millimetres. This measurement represents the distance between the two lugs of the case and is essential for selecting a compatible strap. Measure from the centre of one lug to the centre of the other to verify the exact dimension before purchasing an aftermarket strap.

Which type of strap do you recommend for the Hamilton Jazzmaster H32515155?

For this model, we recommend straps in shell cordovan or vegetable-tanned calf leather, both capable of complementing the understated elegance of the stainless steel case. For a more versatile profile, textile NATO straps or structured rubber maintain optimal proportions without functional compromise. The choice depends on use context and personal finishing preferences.

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

Changing the strap requires a specific tool (spring bar tool) to compress the elastic pins at the strap ends. Position the tool in the small groove of the pin, compress slightly, extract the pin from the case, remove the old strap and insert the new one, aligning the holes. Ensure the pin is fully engaged in both seats before wearing the watch. If inexperienced, a professional watchmaker can perform the operation in minutes.

Can I use an aftermarket strap on a Hamilton Jazzmaster H32515155?

Yes, you can use quality aftermarket straps provided they have a 20mm lug width. Artisanal straps from milanostraps.it are specifically designed for this measurement and offer construction quality comparable to or superior to original straps. Always verify that the spring bars are the correct size (typically 1.8mm diameter for this watch category) to ensure secure and stable coupling.

How long does a leather strap last on a daily-worn watch?

A high-quality leather strap, such as those with vegetable tanning, has an average lifespan of 3–5 years under regular daily use conditions. Longevity depends on factors such as moisture exposure, cleaning frequency and type of activity undertaken (intense sport reduces durability). Periodic maintenance—gentle cleaning, conditioning with specific creams—significantly extends the strap's useful life, allowing a natural patina that many collectors consider part of the appeal of an aged watch.

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.

Request an appointment →

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