Hamilton · Jazzmaster

Strap for Jazzmaster Open Heart 36 Stainless Steel / Blue / Bracelet

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

Lug width18 mm
Case diameter36 mm
ReferenceH32215140
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 H32215140

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Jazzmaster H32215140, seen from the bench

The Jazzmaster represents one of Hamilton's dress watch collections with the automatic Hamilton caliber H-10 movement. The timepiece features hour, minute and second functions. The case features 18mm lugs for the strap.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H32215140?

The lug width of the Hamilton Jazzmaster H32215140 is 18mm. This measurement refers to the distance between the two holes on the watch case where the spring bars of the strap attach. When selecting an aftermarket strap, ensure it is specifically designed for 18mm lug width to guarantee proper fitment and security.

Which strap is best suited for the Hamilton Jazzmaster H32215140?

The H32215140, given its minimalist aesthetic and 36mm diameter, pairs excellently with straps in vegetable-tanned alligator, taupe-grey calf leather, or NATO fabric tapes in neutral tones (navy blue, grey, sand). Avoid saturated colours: the watch's austere design demands materials and hues that complement rather than compete with the stainless steel case.

How do I change the strap on a Hamilton Jazzmaster H32215140?

Use a spring bar tool to replace the strap: insert the tool's tip under the thin spring bar connecting the lug to the case and press gently until the spring bar disengages. Remove the old strap. To install the new one, align the lug holes with the spring bar pins, reinsert the spring bar into the first attachment, then the second. The operation is delicate but manageable with ordinary dexterity.

Is an aftermarket strap compatible with the Hamilton Jazzmaster H32215140?

Yes, provided the strap is certified for 18mm lug width. The H32215140 case uses standard spring bars, meaning any quality strap—whether artisanal or industrial—will function correctly if the lug width specification is met. Always verify leather thickness (should not exceed 4.5mm at the tip) to prevent friction against the case.

What is the typical lifespan of a leather strap on a Hamilton Jazzmaster H32215140?

A quality leather strap, maintained properly (monthly cleaning, conditioning with natural wax every 3–4 months), lasts 3–5 years under daily wear. The patina develops gradually and the strap gains character over time. Exposure to extreme humidity or prolonged dryness reduces lifespan to 1–2 years. A NATO strap, being synthetic, is theoretically indefinite in durability.

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