Hamilton · Jazzmaster

Strap for Jazzmaster Open Secret

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
ReferenceH32756731
FamilyJazzmaster
MovementETA caliber 7750 hours, minutes, small seconds | date, day | Chronograph
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 H32756731

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Jazzmaster H32756731, seen from the bench

The Jazzmaster is equipped with the automatic ETA 7750 caliber providing functions of hours, minutes, small seconds, date, day and chronograph. The model features 22mm lugs for the strap. The reference H32756731 maintains the typical technical characteristics of the Hamilton Jazzmaster collection.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H32756731?

The lug width of the Hamilton Jazzmaster H32756731 is 22mm. This measurement refers to the distance between the lower lugs of the case where the strap attaches. It is essential to verify this measurement with callipers before purchasing an aftermarket strap to ensure a perfect fit.

What is the best strap for the Jazzmaster H32756731?

The best strap depends on intended use. For formal occasions, we recommend Tuscan vegetable-tanned leather in moka or cognac tones, which enhances the instrument's understated elegance. For daily versatility, a NATO strap in canvas or leather-textile is ideal. For sports or water use, vulcanised rubber ensures grip and durability.

How do you change the strap on the Hamilton Jazzmaster H32756731?

Strap replacement is performed by removing the spring bars that connect the strap to the case lugs. Use a spring bar tool or small flathead screwdriver to compress the internal spring and release the strap. Repeat the operation on both attachment points. Insert the new strap by seating the spring bar in the corresponding holes until you feel it click into place.

Is an aftermarket strap compatible with my Jazzmaster H32756731?

An aftermarket strap is compatible if it has a 22mm lug width. Always verify this measurement before purchasing by consulting the strap's technical specifications. Milano Straps provides certified 22mm straps, ready for installation without any adaptation required.

What is the lifespan of a leather strap for the Jazzmaster H32756731?

A strap made from Tuscan vegetable-tanned leather has a lifespan of 3-5 years with moderate daily wear. Longevity depends on sun exposure, humidity, and frequency of use. Proper maintenance with natural oils and storage in a dry environment significantly extends the strap's life, allowing it to develop a rich and characteristic patina over time.

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