Hamilton · Jazzmaster

Strap for Jazzmaster Thinline Small Second Quartz Stainless Steel / Grey

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

Lug width20 mm
Case diameter40 mm
ReferenceH38411783
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

Straps for the Jazzmaster H38411783

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Jazzmaster H38411783, seen from the bench

The Hamilton Jazzmaster H38411783 is a 40 mm stainless steel quartz watch featuring a white dial with applied indices and small seconds subdial. Powered by the ETA caliber 980.163 automatic movement with manual winding at 28,800 vibrations per hour, it delivers daily precision within ±10 seconds. Water-resistant to 30 meters, this classic-sport model from the Jazzmaster collection features a 20 mm lug width designed for strap compatibility and everyday wear.

Frequently asked questions

What is the exact lug width of the Hamilton Jazzmaster H38411783?

The lug width of the Hamilton Jazzmaster H38411783 is precisely 20 millimetres. This measurement is taken between the two horizontal lugs of the case using a digital calliper. Compatible straps must feature a 20mm lug width to ensure correct fit without vertical play or asymmetrical seating.

What is the best strap for the Hamilton Jazzmaster H38411783?

The optimal strap depends on intended usage. For sartorial elegance, we recommend vegetable-tanned calf leather, which develops natural patina over time. For daily sportive wear, a structured rubber or polyamide NATO strap delivers durability and comfort. Genuine alligator represents the formal pinnacle, whilst grey suede suede adds minimalist sophistication.

How do I change the strap on my Hamilton Jazzmaster H38411783?

Strap replacement requires a spring bar removal tool. Position the watch on a support surface, insert the tool into the lateral hole on the case to release the upper lug pin, then extract and repeat for the lower pin. Position the new 20mm strap, aligning the lug slots to the pins, then reinsert the bars, pressing until they click into position. Avoid excessive pressure to prevent case scratching.

Can I use an aftermarket strap on this Hamilton model?

Yes, any aftermarket strap with 20mm lug width is compatible. Artisanal straps in leather, NATO, rubber and technical materials offer aesthetic and constructive versatility superior to OEM solutions. Always verify that the lug slot permits fluid pin insertion without stress on the stainless steel case.

What is the typical lifespan of a leather strap for this watch?

A vegetable-tanned leather strap typically lasts 3 to 7 years depending on daily usage, ambient humidity, and maintenance practices. Vegetable tanning develops protective natural patina that extends resistance. Waxed calf straps average 4-5 years with regular maintenance—cleaning with damp cloth, drying, and annual conditioning. Structured rubber demonstrates superior durability, 6-8 years.

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