Hamilton · Khaki Field

Strap for Khaki Field Quartz Steel / Black / Bracelet

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

Lug width20 mm
Case diameter40 mm
ReferenceH68551933
FamilyKhaki Field
MovementETA caliber F07.111 Hours, Minutes, Seconds | Date
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 Field H68551933

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Khaki Field H68551933, seen from the bench

The Hamilton Khaki Field H68551933 is a contemporary field watch with a brushed stainless steel case measuring 40 mm in diameter. It features an ETA caliber F07.111 manual-wind movement with 4 Hz frequency and approximately ±20 seconds per month accuracy. The black dial displays Arabic numerals and applied hands for legibility. Equipped with a 20 mm lug width, sapphire case back, and water resistance to 10 bar, this model represents authentic military-inspired design without compromise.

Frequently asked questions

What is the lug width of the Hamilton Khaki Field H68551933?

The lug width of the Hamilton Khaki Field H68551933 is 20 millimetres. This measurement is critical for aftermarket strap compatibility. To verify it correctly, measure the space between the case lugs at the strap insertion point.

Which strap is best suited for the H68551933?

The ideal strap depends on intended use and aesthetic preference. For formal occasions we recommend alligator with vegetable tanning; for everyday versatility, chrome-tanned calf; for sport and summer wear, NATO in ballistic fabric; for wet environments, vulcanised FKM rubber. All available in the <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-20mm">20mm collection</a>.

How do you change the strap on this watch?

Position the watch with the lugs facing you. Locate the small cylindrical pin (spring bar) that connects the strap to the case. Using a dedicated tool (spring bar remover), press upward from beneath to release the internal spring. Remove the old strap and insert the new one in the same manner, ensuring the pin is perfectly seated in both holes.

Are aftermarket straps compatible with the H68551933?

Yes, all straps manufactured for 20-millimetre lugs are compatible with the H68551933. Always verify that the strap is expressly dimensioned for 20mm and is equipped with appropriate lugs (also called passants). High-quality artisanal straps often offer superior tactile experience and longevity compared to OEM models.

How long does a leather strap last on this model?

The lifespan of a leather strap varies according to workmanship, material and use. A high-quality chrome-tanned calf strap has an average life of 3–5 years with moderate daily wear. Vegetable-tanned alligator generally lasts longer (5–8 years) due to the natural robustness of the species. Vulcanised FKM rubber, free from biological deterioration, maintains stable performance for 4–6 years before showing aesthetic wear.

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