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Hamilton · Jazzmaster

Strap for Jazzmaster Thinline Small Second Quartz Stainless Steel / Blue / Bracelet

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
ReferenceH38411140
FamilyJazzmaster
MovementETA caliber 980.163 hours, minutes, small seconds
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 H38411140

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Jazzmaster H38411140, seen from the bench

The Hamilton Jazzmaster H38411140 is a 40mm stainless steel case watch featuring the reliable ETA 980.163 quartz movement with hour, minute, and small second functions. The 316L brushed steel case with polished bezel is water resistant to 50 meters, suitable for daily wear. This model uses integral lugs with a 20mm lug width, a specific dimension that requires conscious personalization when selecting alternative straps.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H38411140?

The H38411140 is fitted with integral lugs measuring 20mm in width. This dimension is critical when selecting compatible aftermarket straps: measure the inner distance between the two lug holes using a digital calliper to verify exact compatibility.

Which strap material is most suitable for the Hamilton Jazzmaster H38411140?

Selection depends on intended usage. For formal elegance, alligator or vegetable-tanned calf leather create sophisticated pairings with the brushed steel case finish. For sport and daily wear, NATO fabric straps or FKM rubber offer durability and practicality. Your choice reflects both desired aesthetics and anticipated wear patterns.

How do you change the strap on a Hamilton Jazzmaster H38411140?

Use a spring bar tool to remove the spring bar connecting the strap to the lugs. Position the flat end of the tool in the lug slot, push toward the opposite strap side, and pull the old strap outward. Repeat on the opposite side, then insert the new strap and secure the spring bar using the reverse procedure.

Are third-party 20mm straps genuinely compatible with this model?

Yes, provided they strictly respect the 20mm nominal dimension. Straps manufactured with poor tolerances (19mm or 21mm) may not fit the lugs properly or create excessive play. We recommend verifying supplier specifications and requesting replacement guarantee in case of incompatibility.

What is the typical lifespan of a leather strap on a daily-worn sports watch?

A quality leather strap (alligator, vegetable-tanned calf) worn daily on a sports watch such as the Jazzmaster has an average lifespan of 18–36 months. Humidity, perspiration, sun exposure, and routine care (monthly cleaning, semi-annual conditioning) significantly influence durability. NATO or rubber straps typically last longer in humid environments.

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