Technical Archive

Hamilton
Jazzmaster H32451131— lug 20mm

Hamilton Jazzmaster H32451131: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Jazzmaster Quartz Stainless Steel / Black / Bracelet

Artisanal Note

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

Technical Specifications

Hamilton H32451131
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

H32451131

Movement

ETA caliber F06.111 Hours, Minutes, Seconds | Date

The Heritage

The Jazzmaster represents one of Hamilton's classic collections characterized by elegant design and essential functionality. It features the ETA F06.111 quartz caliber with hours, minutes, seconds and date indication. The watch has 20mm lugs for the strap.

FAQ

What is the lug width of the Hamilton Jazzmaster H32451131?

The lug width of the Hamilton Jazzmaster H32451131 is 20 mm. This measurement is the distance between the inner lugs of the case and must be respected exactly when choosing an aftermarket strap to ensure precise fit without lateral gaps.

Which strap pairs best with the Hamilton Jazzmaster H32451131?

The ideal strap depends on intended use. For formal occasions, we recommend vegetable-tanned calf leather in dark brown or alligator. For daily wear, NATO canvas in grey or navy offers versatility. In summer, FKM rubber ensures comfort and practicality. Atelier Casati Milano customises the choice based on your style and specific dial variant.

How do I change the strap on my Hamilton Jazzmaster H32451131?

Strap replacement is done by removing the spring bars (small metal pins) connecting the lug to the case horns. Use a dedicated spring bar tool or consult a professional watchmaker to avoid scratches. Atelier Casati Milano also offers strap change service by appointment at the Milan location.

Is a 20mm aftermarket strap compatible with the Hamilton Jazzmaster H32451131?

Yes, any strap with a 20 mm lug width is physically compatible. However, we recommend verifying the quality of construction and spring bar finishing (which must be stainless steel) to ensure durability and aesthetic coherence with the timepiece.

How long does a leather strap last on the Hamilton Jazzmaster H32451131?

A high-quality calf leather strap with vegetable tanning, such as those from Atelier Casati Milano, typically lasts 3–5 years with daily wear. Longevity depends on factors like humidity exposure, perspiration, extreme temperatures and cleaning frequency. Regular maintenance (protective balm, drying after exposure) significantly extends strap life.