Hamilton · Khaki Navy

Strap for Khaki Navy BeLOWZERO Auto Chrono Stainless Steel / Black

Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width24 mm
Case diameter46 mm
ReferenceH78616733
FamilyKhaki Navy
MovementETA caliber 7750 hours, minutes, small seconds | date, day | Chronograph
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 Khaki Navy H78616733

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Khaki Navy H78616733, seen from the bench

The Hamilton Khaki Navy H78616733 is a 46mm stainless steel automatic chronograph powered by the ETA caliber 7750 movement. Featuring a rotating bezel, luminous indices, and a 24mm lug width, this tool watch is designed for military operations and extreme environments. The satined and polished stainless steel case resists oxidation and enables field maintenance, while its robust proportions and chronograph function—with hour, minute, small second, and date-day indicator—define its tactical heritage.

Frequently asked questions

What is the exact lug width of the Hamilton Khaki Navy H78616733?

The lug width of the Hamilton Khaki Navy H78616733 is 24 millimetres. This dimension is the historical standard for American military chronographs and requires that any aftermarket strap be precisely this width to ensure correct fitting to the case lugs without play or forcing.

What is the best strap for the Hamilton Khaki Navy H78616733?

For the Khaki Navy H78616733, we recommend robust leather with vegetable tanning (cognac brown or dark tones), which respects the watch's military identity and develops a noble patina over time. Alternatively, a NATO strap in heavy cotton or an FKM rubber strap provides practicality and tactile grip in extreme conditions without functional compromise.

How do you change the strap on a Hamilton Khaki Navy chronograph?

Strap replacement requires a dedicated tool (spring bar tool) or a small pliers. Gently compress the elastic pin (spring bar) and extract it from the case lug, then insert the new strap ensuring the pin clicks firmly into position. For models such as the H78616733 with a 24mm lug width, always verify that the strap is compatible with this dimension.

Can you find a reliable and compatible aftermarket strap for the Khaki Navy H78616733?

Yes. Quality aftermarket straps with 24mm lug width are readily available. Milano Straps offers a curated selection of Italian leather, NATO, and technical rubber, all specifically designed for watches of this calibre. Compatibility is guaranteed if the lug width is exactly 24mm.

How long does a leather strap last on a watch like the Hamilton Khaki Navy?

A quality leather strap with vegetable tanning has a lifespan of 3–5 years with regular use. Longevity depends on humidity exposure, frequency of use, and maintenance (periodic cleaning, drying after saltwater contact). Tactical conditions or humid environments may reduce durability; in such cases, an FKM rubber or NATO strap is more suitable.

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