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Hamilton · Jazzmaster

Strap for Jazzmaster Open Heart 40 Stainless Steel / Burgundy Gradient

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
20 mm strapsAll Hamilton
Lug width20 mm
Case diameter40 mm
ReferenceH32675570
FamilyJazzmaster
MovementHamilton caliber H-10 ND hours, minutes, seconds
Year2024
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 H32675570

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Jazzmaster H32675570, seen from the bench

The Jazzmaster represents one of Hamilton's contemporary lines characterized by classic American design. It features the Hamilton H-10 ND caliber with hour, minute and second indication. The reference model H32675570 has 20mm lugs.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H32675570?

The Hamilton Jazzmaster H32675570 features a lug width of 20 millimetres. This measurement represents the distance between the two attachment pins on the case and determines compatibility with aftermarket straps. You can verify it by extracting the pins from the case and measuring them with a digital calliper.

Which strap is most suitable for the Hamilton Jazzmaster H32675570?

The choice depends on intended use and aesthetic preference. High-quality alligator offers formal elegance and develops a natural patina over time. Leather with vegetable tanning combines craftsmanship and visually pleasing ageing. A NATO fabric strap restores versatile sport-elegant daily wearability. FKM rubber ensures durability and comfort in humid or casual environments. All are available in 20mm configuration through MilanoStraps.

How do I change the strap on the Hamilton Jazzmaster H32675570?

Strap replacement is a straightforward procedure. Obtain a spring bar tool (dedicated lever for the pins). Position the watch with the strap-side of the case facing upward, insert the tool beneath the pin, and lift gently to disengage the internal spring. Repeat for both sides. Insert the pins into the new strap using the same procedure in reverse, ensuring the springs engage properly in their seats.

Can I fit a strap with a different lug width than 20mm?

We do not recommend installing straps with a lug width other than 20mm. A 22mm or 18mm strap risks accelerated pin wear, loosening in the lug seats, and potential structural damage to the case. If you wish alternative straps, always ensure they meet the 20mm specification, such as those available in MilanoStraps' collection dedicated to this model.

What is the average lifespan of a leather strap on the Jazzmaster?

The lifespan of a leather strap varies based on construction quality, material type (alligator, calf, shell cordovan) and usage patterns. A calf strap with vegetable tanning, under moderate wear, maintains structural integrity for 3 to 5 years. Alligator can last 7 to 8 years. Shell cordovan may exceed 10 years. It is important not to expose the strap to stagnant moisture, apply protective treatments periodically, and rotate between multiple straps to distribute wear.

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