Hamilton

Railroad Auto

Reference Number :

H40555731

Series : American Classic

Retail: $1,045

(As of: 07/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Hamilton. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThere's an undeniable charm to a watch that so perfectly balances historical tribute with contemporary execution. The Railroad Auto isn't just a name; it's a design ethos. You can see the ghost of a classic pocket watch in its DNA, especially in the hyper-legible, track-like minute scale that dominates the dial's perimeter. But this is no relic. The sharp, vibrant orange of the inner hour track and the matching strap stitching injects a dose of modern energy, preventing it from ever feeling dated. It's a conversation between eras on your wrist. The real magic, though, is the H-10 movement humming away inside. Knowing you have an 80-hour power reserve—that's true modern convenience. You can give it a rest for the weekend and it'll be ready to go Monday morning, no questions asked. It’s the perfect blend of a tool watch’s soul and a dress watch’s sophistication.

DescriptionThe Hamilton American Classic Railroad Auto, designated by reference number H40555731, is constructed with a stainless steel case measuring 40mm in diameter and 11.35mm in thickness. Its architecture includes a 20mm lug width for strap attachment. The watch face is protected by a sapphire crystal, which has been treated with an anti-reflection coating to ensure maximum dial clarity under various lighting conditions. A key feature is the open case back, providing a view of the internal mechanism. The black dial is designed for precision, featuring a prominent minute track and an inner ring with contrasting orange numerals. Water resistance is certified to a pressure of 5 bar, which is equivalent to a depth of 50 meters or 73 pounds per square inch, making it suitable for everyday exposure to water but not for submersion activities. A date aperture is positioned at the 3 o'clock mark for added functionality.

Powering the timepiece is the Caliber H-10, a three-hand automatic movement known for its substantial 80-hour power reserve. This extended duration allows the watch to remain operational for over three days without being worn or wound. As utilized in the American Classic collection, the H-10 movement is distinguished by its intricate decorative finishes, including contrasting snail and pearled patterns visible through the exhibition case back. The watch is fitted with a calf leather strap (strap reference H6004051031) that features orange stitching to complement the dial's accents. This strap connects to the wrist via a stainless steel folding clasp, which has a corresponding buckle width of 18mm, providing a secure and comfortable fit.

GenderMen

SignaturesHamilton

Country of OriginSwitzerland

Case Size40 mm

MovementAutomatic

CaliberH-10

FunctionsHours, Minutes, Seconds, Date

Power Reserve80 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSapphire Crystal