Hamilton · Jazzmaster

Strap for Jazzmaster Seaview Day-Date Quartz 42 Stainless Steel / Black / Bracelet

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceH37511131
FamilyJazzmaster
MovementETA caliber 955.122 Hours, Minutes, Seconds | Date, Day
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 H37511131

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Jazzmaster H37511131, seen from the bench

The Jazzmaster represents one of Hamilton's classic lines, characterized by a dress watch design with indications for hours, minutes, seconds, date and day of the week. It is powered by the ETA 955.122 quartz calibre with calendar complications. The case features 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H37511131?

The lug width of the Hamilton Jazzmaster H37511131 is 22 millimetres. This measurement represents the distance between the two lugs on the watch case and is the essential parameter for determining compatibility with straps. All our 22mm straps fit perfectly on this model.

What is the best strap for the Hamilton Jazzmaster H37511131?

There is no absolute 'best,' as it depends on your intended use. For formal elegance, we recommend genuine alligator in black or tobacco brown. For daily versatility, vegetable-tanned Tuscan leather develops a fascinating patina over time. For sporty appeal, NATO cloth straps offer practicality and military character aligned with Hamilton's heritage. Your choice reflects your lifestyle.

How do you change the strap on a Hamilton Jazzmaster?

The Hamilton Jazzmaster uses standard spring bars. To change the strap, acquire a small steel lug removal tool—often included with quality straps. Insert the lever under the lug, gently apply pressure to compress the internal spring, and remove the lug pin. Repeat on the opposite side. This operation takes minutes and requires no specialised equipment. Avoid sharp impacts.

Can third-party straps be mounted on this model?

Absolutely. Any strap with a 22mm lug width is compatible with the H37511131. Our leather, alligator, NATO, and rubber straps are all engineered for this width and fit flawlessly. Always verify lug width before purchasing to ensure compatibility.

How long does a leather strap last on a watch like the Jazzmaster?

Durability depends on material quality and usage patterns. A quality vegetable-tanned Tuscan leather strap, worn daily, typically lasts 3-5 years before replacement becomes necessary. Genuine alligator can last 7-10 years with proper maintenance: avoid prolonged exposure to water and perspiration, and occasionally clean with a soft cloth. NATO and rubber straps typically last longer due to greater material resilience.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only