- 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)
- Anti Reflection Yes
- Screw Down Crown Yes
- Nivachron Yes
- Super Luminova Yes
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- Intra-Matic Auto Chrono
- American Classic Intra-Matic Auto Chrono

New
American Classic Intra-Matic Auto Chrono
Automatic | 40mm | H38446730
CHF 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
- Free delivery 48-72h and return
- Payment by facture in 3, 6 or 12 interest-free
- 2-Year International Warranty
- Free returns within 14 days from delivery
- Contact us: +41 32 321 49 99 or shopch@hamiltonwatch.com
Delivery & Return
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Delivery
We offer A Mail or B Mail delivery for our products. For more information about our delivery options, please visit “Delivery and Returns”.
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Return
We offer free returns within 14 days from delivery. For more information, please visit “Delivery and Returns”.
Orders for straps and accessories are excluded from the right to cancel. They cannot therefore be returned. For more information, see "Conditions of sale".
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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