Hamilton · Jazzmaster

Strap for Jazzmaster Viewmatic Auto 44 Stainless Steel - Rose Gold / Silver

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

Lug width22 mm
Case diameter44 mm
ReferenceH42725551
FamilyJazzmaster
MovementHamilton caliber H-10 hours, minutes, seconds | date
Year2016
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 H42725551

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Jazzmaster H42725551, seen from the bench

The Jazzmaster represents one of Hamilton's classic collections, characterized by elegant lines and essential functionality. The reference H42725551 is equipped with the Hamilton H-10 caliber with hour, minute, second and date indication. The watch features 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Hamilton Jazzmaster H42725551?

The lug width of the Hamilton Jazzmaster H42725551 is 22 millimetres, measured from inner shoulder to inner shoulder. This width is the standard for 44mm cases with classic proportions and is easily verifiable with a digital calliper positioned between the two metal shoulders that accommodate the strap.

Which strap should I choose for the Hamilton Jazzmaster H42725551?

For the H42725551, we recommend vegetable-tanned calf leather straps if you desire natural patina over time, or shell cordovan for formal elegance. For versatility, a navy blue NATO canvas strap maintains sporting dignity. Your choice depends on usage: formal, daily wear, or sport. All 22mm straps are compatible with this model.

How do I change the strap on the Hamilton Jazzmaster H42725551?

Position the watch with the case facing upward. Locate the small metal bars (spring bars) that run through the case shoulders. Using a dedicated spring bar tool, apply gentle pressure to release one of the bars, remove the old strap and insert the new one. Ensure the spring bars are fully seated in the new case seats to prevent loss.

Does the Hamilton H42725551 accept quality aftermarket straps?

Yes, the H42725551 accepts quality aftermarket straps with full compatibility. The standardised 22mm lug width provides access to international specialist catalogues. Always verify that strap thickness is compatible with the case geometry to avoid abnormal pressure on the shoulders.

How long does a leather strap last on the Hamilton Jazzmaster H42725551?

A quality leather strap with vegetable tanning lasts 3-5 years with daily wear and regular maintenance. Durability depends on climate, humidity and sun exposure. Clean the strap monthly with a damp cloth, avoid prolonged contact with salt water and consider periodic rotation with alternative straps to extend service life.

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