- Reference H38446730
- Caliber H-31
- Collection American Classic
- Movement Automatic
- Case size 40mm
- Thickness (mm) 14.45
- Dial color Black
- Case material Stainless steel
- Coating PVD black
- Crystal Sapphire
- Lug width 20mm
- Power reserve 60 hour
- Status Current collection
- Water Resistance 10 bar (100m)/145 psi (328ft)
- Anti Reflection Yes
- Screw Down Crown Yes
- Nivachron Yes
- Super Luminova Yes
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- American Classic Intra-Matic Auto Chrono

New
American Classic Intra-Matic Auto Chrono
Automatic | 40mm | H38446730
$2,295.00
In stock








Inspired by its original racing roots in 1968, the Intra-Matic Auto Chrono welcomes a new interpretation of the iconic Intra-Matic design. A modern take on a vintage classic, the all-black 40mm PVD case, dial and perforated strap add a contemporary edge to a historical model that harks back to the 70s.
Discover our vintage inspired intra-matic watch collection.
Inspired by its original racing roots in 1968, the Intra-Matic Auto Chrono welcomes a new interpretation of the iconic Intra-Matic design. A modern take on a vintage classic, the all-black 40mm PVD case, dial and perforated strap add a contemporary edge to a historical model that harks back to the 70s.
Discover our vintage inspired intra-matic watch collection.
Specifications
Strap
- Strap reference H6000002111
- Strap type Calf leather
- Buckle type Pin buckle
- Buckle width 18mm
Movement
H-31
The H-31 is a powerful automatic chronograph movement featuring an extended 60-hour power reserve, making it perfect for the demands of the sportiest of models. With an H pattern design on the oscillating bridge, there’s no mistaking who made this movement.

Information
- Complimentary gift box available at checkout (excludes watches with specialty boxes)
- Free Next-Day Shipping
- 2-Year International Warranty
- Contact us: 1-800-234-8463 | Send us a message
Delivery & Return
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Delivery
We offer free delivery for all orders. If you would like your order to arrive sooner you can select “Next-Day Delivery” (rates vary by location). To find out more information about our delivery options please visit our Shipping Policy.
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Return
We offer returns within 14 days from delivery. For more information, please visit our Return Policy.
If you have an item that you would like to return, please contact our customer service department at 1-800-234-8463 or Write us.
Features
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SELF-WINDING
Wrist movements cause the inner rotor to swing, transferring energy to the mainspring, and powering your timepiece.
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STAINLESS STEEL CASE
A highly resistant alloy composed of steel and chromium. It can be worked to resemble a precious metal. It is nearly impervious to rust, tarnish, and corrosion.
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Sapphire Crystal
Synthetic sapphire crystal is a tough scratch-resistant material, only diamonds could leave a mark.
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NIVACHRON™ BALANCE SPRING
Nivachron™ is an alloy used to produce balance spring to resist magnetic fields and improve accuracy. It reduces the effects of magnets, temperature, and shocks.
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H-31 CALIBER
A powerful automatic chronograph movement featuring an extended 60-hour power reserve.
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WATER RESISTANCE
Your timepiece is resistant up to 10 bar (100m) / 145 psi (328 ft).
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INTRA-MATIC AUTO CHRONOA new generation of racing watches is here. Meet the Intra-Matic Auto Chrono.
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REVIVING A CLASSICThe Intra-Matic takes inspiration from the Chrono-matic, Hamilton’s first automatic chronograph.
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