Hamilton · Khaki Navy

Strap for Khaki King Scuba Automatic

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

Lug width20 mm
Case diameter41 mm
ReferenceH64515337
FamilyKhaki Navy
MovementETA caliber 2834-2 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 Khaki Navy H64515337

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Khaki Navy H64515337, seen from the bench

The Khaki Navy represents Hamilton's naval line, equipped with an automatic ETA caliber 2834-2 movement. The caliber offers indication of hours, minutes, seconds, date and day of the week. The watch features 20mm lugs for the strap.

Frequently asked questions

What is the lug width of the Hamilton Khaki Navy H64515337?

The Hamilton Khaki Navy H64515337 features a 20 mm lug width. This measurement represents the orthogonal distance between the two lug attachments on the case. To verify with precision, insert a digital calliper between the internal bearing points of the lugs at the lateral midpoint. Any strap selected for this model must have a lug width compatible with 20 mm to ensure correct and secure attachment.

Which strap is recommended for pairing with the Hamilton Khaki Navy H64515337?

The Khaki Navy H64515337 pairs naturally with straps in alligator or calf leather in neutral tones (dark brown, cognac, military green). For a conservative approach, vegetable-tanned calf with contrasting stitching is advised. For aquatic applications, an FKM rubber strap in grey or black ensures water resistance and grip. A NATO strap in nylon ripstop remains the most versatile and functionally adaptable choice.

How do you change the strap on a Hamilton watch?

Changing the strap on a Hamilton Khaki Navy H64515337 involves the spring bars (spring-loaded bars) that connect the lugs to the ends of the original strap. Using the appropriate tool (spring bar tool), apply pressure inward on the threaded hole of the bar, lift it slightly, and remove the old strap. Insert the new bar into the new strap (ensuring it is a 20 mm model), snap it into position, and verify that the strap is securely fastened before wearing the watch.

Is it possible to use an aftermarket strap on a Hamilton Khaki Navy H64515337?

Yes, any artisanal or industrial strap constructed for a 20 mm lug width is compatible with the Khaki Navy H64515337. It is essential to verify the exact lug width before purchase to avoid loose or excessively tight spring bars. High-quality materials (alligator, vegetable-tanned calf, technical rubber) are recommended to ensure durability and resistance to the environmental conditions for which the watch was designed.

What is the lifespan of a leather strap on a Hamilton Khaki Navy?

The lifespan of a leather strap depends on the quality of the tanning process, frequency of use, and environmental exposure conditions. A high-quality vegetable-tanned calf strap, with minimal maintenance (periodic cleaning, protection from excessive humidity), remains in optimal condition for 3–5 years. Alligator or shell cordovan straps achieve superior durability (5–7 years) due to the fibre structure of the reptile and horse leather. Humid, aquatic, or high-perspiration environments significantly reduce these timescales: in such contexts, a fluoroelastomer (FKM) rubber strap with extended durability beyond 10 years is advised.

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