Hamilton Intra-Matic Auto Chrono 40mm H38446731
Race-Ready since 1968
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 late sixties.
Inside this Intra-Matic beats the Hamilton H-31 — a powerful automatic chronograph movement featuring an extended 60-hour power reserve, making it perfect for the demands of the sportiest of timekeeping missions. With an H pattern design on the oscillating bridge, there’s no mistaking who made this movement.
Specifications:
- Case: Brushed stainless steel
- Case size: 40mm (14.5mm thick)
- Water Resistance: 100 meters
- Caseback: Solid, engraved & PVD-coated
- Caliber: H-31
- Movement type: Automatic chronograph with 30 minute totalizer, running seconds at 9H and date at 6H (date corrector at 10H)
- Power reserve: 60 hours
- Lug width: 20mm
- Glass: Sapphire crystal
- Strap: Racing style perforated leather strap
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Shipping & Returns



Hamilton Intra-Matic Auto Chrono 40mm H38446731
Hamilton Intra-Matic Auto Chrono 40mm H38446731
Race-Ready since 1968
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 late sixties.
Inside this Intra-Matic beats the Hamilton H-31 — a powerful automatic chronograph movement featuring an extended 60-hour power reserve, making it perfect for the demands of the sportiest of timekeeping missions. With an H pattern design on the oscillating bridge, there’s no mistaking who made this movement.
Specifications:
- Case: Brushed stainless steel
- Case size: 40mm (14.5mm thick)
- Water Resistance: 100 meters
- Caseback: Solid, engraved & PVD-coated
- Caliber: H-31
- Movement type: Automatic chronograph with 30 minute totalizer, running seconds at 9H and date at 6H (date corrector at 10H)
- Power reserve: 60 hours
- Lug width: 20mm
- Glass: Sapphire crystal
- Strap: Racing style perforated leather strap
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Race-Ready since 1968
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 late sixties.
Inside this Intra-Matic beats the Hamilton H-31 — a powerful automatic chronograph movement featuring an extended 60-hour power reserve, making it perfect for the demands of the sportiest of timekeeping missions. With an H pattern design on the oscillating bridge, there’s no mistaking who made this movement.
Specifications:
- Case: Brushed stainless steel
- Case size: 40mm (14.5mm thick)
- Water Resistance: 100 meters
- Caseback: Solid, engraved & PVD-coated
- Caliber: H-31
- Movement type: Automatic chronograph with 30 minute totalizer, running seconds at 9H and date at 6H (date corrector at 10H)
- Power reserve: 60 hours
- Lug width: 20mm
- Glass: Sapphire crystal
- Strap: Racing style perforated leather strap
















