Hamilton

Intra-Matic Auto Chrono

Reference Number :

H38446730

Series : American Classic

Retail: $2,425

(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 TakeThis isn't your grandfather's chronograph, even if it borrows his good looks. The Intra-Matic Auto Chrono in this all-black configuration is pure modern muscle cloaked in vintage charm. It’s got that classic "panda" dial layout, but the black PVD coating transforms it from a polite nod to the 60s into a stealthy piece of wrist-gear ready for today's concrete jungles. You feel the engineering when you operate the pushers; there's a satisfying mechanical certainty to their action. Underneath that dark exterior beats the heart of a serious performer, the H-31 movement, giving you a weekend-proof 60-hour power reserve and the stability of a Nivachron balance spring. It’s the kind of watch that doesn’t shout for attention but confidently earns it. The perforated leather strap feels right, a perfect link to a bygone era of motorsports, making you want to find an open road every time you buckle it on. It’s a beautifully executed paradox: classic design with contemporary guts and a tough, modern attitude.

DescriptionThe Hamilton American Classic Intra-Matic Auto Chrono, reference H38446730, is constructed around a 40mm stainless steel case with a thickness of 14.45mm. This case is finished with a durable black PVD coating, providing a distinct monochrome aesthetic. A scratch-resistant sapphire crystal with an anti-reflection coating protects the dial, ensuring maximum legibility under various lighting conditions. For enhanced durability and water integrity, the watch incorporates a screw-down crown, contributing to its water resistance rating of 10 bar, equivalent to 100 meters or 328 feet. The design specifies a lug width of 20mm, accommodating the supplied strap, which is a black calf leather type featuring a perforated, rally-style design. This strap, reference H6000002111, secures to the wrist with a traditional pin buckle that has a width of 18mm.

Powering the chronograph and timekeeping functions is the Hamilton Caliber H-31 automatic movement. This advanced caliber provides a substantial 60-hour power reserve, a significant extension over standard movements. The movement's architecture includes a Nivachron balance spring, which offers superior resistance to magnetic fields and temperature variations, thereby enhancing timekeeping precision and reliability. The black dial presents a classic bi-compax chronograph layout, supplemented by a date complication and a tachymeter scale on the periphery for calculating speed. Legibility in low-light environments is guaranteed by the application of Super-LumiNova on critical dial elements. The movement's oscillating bridge is distinctively decorated with an H-pattern design, signifying its in-house development.

GenderMen

SignaturesHamilton

Country of OriginSwitzerland

Case Size40 mm

MovementAutomatic

CaliberH-31

FunctionsChronograph, Hours, Minutes, Seconds, Date

Power Reserve60 Hours

Case MaterialsStainless Steel, PVD

Bezel MaterialsStainless Steel, PVD

Lug MaterialsStainless Steel, PVD

CrownScrew Down