Hamilton · Railroad
Strap for Railroad 44 Chrono Stainless Steel / Black
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Railroad H40656731
Selected for the 22 mm lug width · workshop selection
Dark Brown Saffiano Strap with Ecru Stitching€90
Embossed Red Epsom Strap€120
Hammered Pink Strap with Ecru Stitching€98
Black Saffiano Rubber Strap€105
Black Calfskin NATO Strap€80
The Railroad H40656731, seen from the bench
Frequently asked questions
What is the exact lug width of the Hamilton Railroad H40656731?
The Hamilton Railroad H40656731 features 22-millimetre lugs. This measurement is calculated between the two horizontal pins integrated into the case. It is essential to verify this dimension before purchasing an aftermarket strap, as 22mm does not correspond to the most common standards (20mm or 24mm). Measure the internal distance with a calliper or millimetre ruler positioned perpendicular to the lugs.
Which strap is most suitable for the Hamilton Railroad H40656731?
For this model, we recommend straps in vegetable tanning (such as Tuscan Leather Tobacco Brown) that enhance the industrial and vintage character of the timepiece, or alligator for absolute tactile sophistication. NATO and ballistic fabrics are ideal if you seek practicality and durability in daily wear. Shell cordovan and fine calf offer hardness and visible ageing over time. Your choice depends on usage: for formal contexts, choose structured leather; for daily-sport use, opt for fabric or rubber.
How do you change the strap on the Hamilton Railroad H40656731?
The H40656731 uses a fixed lug system integrated into the case. Gently remove the old strap by inserting the locking pins (which connect strap and lugs) inward using a dedicated tool or fine point. Extract the pin, slide the strap out of the lugs and insert the new one, ensuring it is perfectly aligned at 22 millimetres. Never force it: a correctly sized strap enters smoothly, without resistance.
Can I use an aftermarket strap on this Hamilton Railroad?
Yes, provided the lug width is exactly 22 millimetres. Quality aftermarket straps (leather, alligator, NATO) are compatible with the H40656731's fixed lug system. However, it is essential to verify the strap specifications before purchase: some manufacturers incorrectly list measurements. We recommend straps from specialised suppliers that guarantee dimensional accuracy and construction quality.
How long does a leather strap last on the Hamilton Railroad H40656731?
Durability depends on material and usage. A vegetable-tanned strap (Tuscan or similar) lasts 2-4 years with moderate daily wear, developing a noble patina. Alligator is more durable, 4-6 years. Shell cordovan exceeds 6 years due to its density. Rubber and NATO fabrics offer 5-7 years before showing wear. Leather requires periodic maintenance: avoid prolonged moisture, clean with a soft cloth and occasionally apply wax or oil designed for leather to maintain elasticity and shine.
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
