Technical Archive

Hamilton
Khaki Navy H64515337— lug 20mm

Hamilton Khaki Navy H64515337: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Khaki King Scuba Automatic

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Hamilton H64515337
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

H64515337

Movement

ETA caliber 2834-2 Hours, Minutes, Seconds | Date, Day

The Heritage

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.

FAQ

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.