Hamilton · Railroad

Strap for Railroad 42 Skeleton Auto Stainless Steel / Silver / Bracelet

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

Lug width22 mm
Case diameter42 mm
ReferenceH40655151
FamilyRailroad
MovementHamilton caliber H-10-S hours, minutes, seconds | skeleton
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 Railroad H40655151

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Railroad H40655151, seen from the bench

The Hamilton Railroad features the automatic caliber H-10-S with hour, minute and second functions, characterized by a skeletonized design that exposes the movement. The watch has 22mm lugs for the strap. The model belongs to the brand's railroad collection, developed in reference to Hamilton's tradition in the field of marine chronometers.

Frequently asked questions

What is the exact lug width of the Hamilton Railroad H40655151?

The lug width of the Hamilton Railroad H40655151 is 22mm. This standard measurement ensures compatibility with any strap from the Milano Straps 22mm collection. To verify independently, position a digital calliper between the internal lug ends of your watch: the reading will confirm the 22mm specification.

Which strap do you recommend for the Hamilton Railroad H40655151?

Tuscan vegetable-tanned leather in cognac brown enhances the railway heritage of the H40655151, allowing the skeleton movement to dominate visually. For a more formal presentation, French calf in charcoal-grey offers sophisticated contrast. For robust daily wear, 1.6mm NATO weave or FKM rubber guarantee practicality without aesthetic compromise.

How do I change the strap on my Hamilton Railroad H40655151?

Position your watch on a soft cloth with the dial facing downward. Locate the spring bars at each end of the existing strap. Use a spring bar removal tool to compress the internal spring slightly and slide the old strap free. Align the new strap's holes with the lug ends, then release the spring bar. The procedure takes less than two minutes and requires no technical expertise.

Are Milano Straps compatible with the H40655151?

Entirely, yes. Milano Straps offers a dedicated collection for 22mm straps, the standard lug width of the H40655151. Every strap in this collection — vegetable leather, alligator, calf, NATO, FKM rubber — achieves 100% compatibility with your Hamilton Railroad's lugs. Dispatch is rapid and every strap is ready for immediate installation.

What is the lifespan of a leather strap on the Hamilton Railroad H40655151?

A high-quality, vegetable-tanned leather strap resists 3-5 years of daily wear with proper maintenance. Climate, direct sunlight exposure, humidity levels and usage frequency influence longevity. Monthly cleaning with a slightly damp soft cloth and semi-annual application of wax balm extends strap life significantly, preserving flexibility and patina development.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only