Technical Archive

Hamilton
Jazzmaster H32565735— lug 20mm

Hamilton Jazzmaster H32565735: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Jazzmaster Open Heart 40mm Black Dial

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Hamilton H32565735
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

H32565735

Movement

ETA caliber 2824-2 Hours, Minutes, Seconds | Date

The Heritage

The Hamilton Jazzmaster H32565735 Open Heart 40mm embodies American watchmaking spirit from the 1960s reinterpreted through a contemporary lens. This model features a clean dial, impeccable legibility, and a 40mm stainless steel case with polished and brushed finish. It houses an ETA Caliber 2824-2 automatic movement visible through the exhibition caseback, beating at 28,600 oscillations per hour with date and hours-minutes-seconds functions. The 20mm lug width is essential for proper strap compatibility and aesthetic balance.

FAQ

What is the exact lug width of the Hamilton Jazzmaster H32565735?

The lug width of the H32565335 is 20mm. This measurement is determined by the internal distance between the pins that support the strap on the case. For accurate verification, position a calliper between the two lugs: the measurement must be precisely 20mm. This dimension does not allow for tolerances and ensures correct fitting of any dedicated strap.

Which strap is most suitable for the Jazzmaster H32565735?

For a watch of this category, we recommend alligator in vegetable tanning or calf leather with vegetable finishing for formal wear, or a cotton NATO for casual and sports contexts. Shell cordovan represents an ideal intermediate solution for those desiring versatility. Your choice depends on predominant use and personal aesthetic preferences.

How do I change the strap on my Hamilton Jazzmaster H32565735?

Hold the watch with the case facing upwards and locate the two fixing pins on the crown. Using a dedicated tool (spring bar tool), gently press towards the centre of the case to retract the pin spring, then withdraw the old strap. Insert the new strap, aligning the hole to the pin, and press until you hear a 'click' of engagement. Verify that both pins are securely fastened before wearing the watch.

Can I use aftermarket or non-original straps on my H32565735?

Absolutely. The H32565335 accepts any quality strap manufactured with a 20mm lug width, regardless of the manufacturer. Artisanal leather, NATO and rubber straps are fully compatible, often offering superior finishes and customisations compared to OEM straps. It is always important to verify the exact width before purchasing.

How long does a leather strap last on the Hamilton Jazzmaster H32565735?

A quality leather strap with vegetable tanning typically lasts between 3 and 7 years of daily use, depending on frequency of use, climatic conditions and maintenance. An alligator or shell cordovan strap tends to last longer owing to the robustness of the material. The patina that develops over time is normal and imparts character. To extend service life, avoid prolonged exposure to moisture and direct sunlight.